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897828799 = 7971322281
BaseRepresentation
bin110101100000111…
…100011110111111
32022120102102120111
4311200330132333
53314321010144
6225031330451
731151263450
oct6540743677
92276372514
10897828799
1142088a07a
12210820a27
1311401635a
1487353127
1553c4d534
hex3583c7bf

897828799 has 8 divisors (see below), whose sum is σ = 1036669088. Its totient is φ = 761633280.

The previous prime is 897828797. The next prime is 897828809. The reversal of 897828799 is 997828798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 897828799 - 21 = 897828797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897828797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660462 + ... + 661819.

It is an arithmetic number, because the mean of its divisors is an integer number (129583636).

Almost surely, 2897828799 is an apocalyptic number.

897828799 is a deficient number, since it is larger than the sum of its proper divisors (138840289).

897828799 is a wasteful number, since it uses less digits than its factorization.

897828799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322385.

The product of its digits is 36578304, while the sum is 67.

The square root of 897828799 is about 29963.7914657007. The cubic root of 897828799 is about 964.7123625709.

Subtracting 897828799 from its reverse (997828798), we obtain a palindrome (99999999).

The spelling of 897828799 in words is "eight hundred ninety-seven million, eight hundred twenty-eight thousand, seven hundred ninety-nine".

Divisors: 1 7 97 679 1322281 9255967 128261257 897828799