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897460841 = 3449260209
BaseRepresentation
bin110101011111100…
…010101001101001
32022112201201211102
4311133202221221
53314222221331
6225015411145
731145201624
oct6537425151
92275651742
10897460841
11420658682
12210683ab5
13113c17a24
1487298dbb
1553bc94cb
hex357e2a69

897460841 has 4 divisors (see below), whose sum is σ = 897724500. Its totient is φ = 897197184.

The previous prime is 897460793. The next prime is 897460843. The reversal of 897460841 is 148064798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 354757225 + 542703616 = 18835^2 + 23296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-897460841 is a prime.

It is a super-2 number, since 2×8974608412 = 1610871922256854562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897460843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126656 + ... + 133553.

It is an arithmetic number, because the mean of its divisors is an integer number (224431125).

Almost surely, 2897460841 is an apocalyptic number.

It is an amenable number.

897460841 is a deficient number, since it is larger than the sum of its proper divisors (263659).

897460841 is a wasteful number, since it uses less digits than its factorization.

897460841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263658.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 897460841 is about 29957.6507924103. The cubic root of 897460841 is about 964.5805549122.

The spelling of 897460841 in words is "eight hundred ninety-seven million, four hundred sixty thousand, eight hundred forty-one".

Divisors: 1 3449 260209 897460841