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4468997 = 13343769
BaseRepresentation
bin10001000011000100000101
322102001022102
4101003010011
52121001442
6235441445
752662101
oct21030405
98361272
104468997
112582695
1215b6285
13c061a0
14844901
155d4232
hex443105

4468997 has 4 divisors (see below), whose sum is σ = 4812780. Its totient is φ = 4125216.

The previous prime is 4468979. The next prime is 4469027. The reversal of 4468997 is 7998644.

It is a Cunningham number, because it is equal to 21142+1.

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 662596 + 3806401 = 814^2 + 1951^2 .

It is a cyclic number.

It is not a de Polignac number, because 4468997 - 28 = 4468741 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4468927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171872 + ... + 171897.

It is an arithmetic number, because the mean of its divisors is an integer number (1203195).

Almost surely, 24468997 is an apocalyptic number.

It is an amenable number.

4468997 is a deficient number, since it is larger than the sum of its proper divisors (343783).

4468997 is a wasteful number, since it uses less digits than its factorization.

4468997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343782.

The product of its digits is 435456, while the sum is 47.

The square root of 4468997 is about 2114.0002365184. Note that the first 3 decimals coincide. The cubic root of 4468997 is about 164.7163415252.

The spelling of 4468997 in words is "four million, four hundred sixty-eight thousand, nine hundred ninety-seven".

Divisors: 1 13 343769 4468997