10644975 has 108 divisors (see below), whose sum is σ = 23154768. Its totient is φ = 4646400.

The previous prime is 10644971. The next prime is 10645039. The reversal of 10644975 is 57944601.

10644975 is a `hidden beast` number, since 1 + 0 + 644 + 9 + 7 + 5 = 666.

It is not a de Polignac number, because 10644975 - 2² = 10644971 is a prime.

It is a super-2 number, since 2×10644975² = 226630985501250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10644971) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 462814 + ... + 462836.

It is an arithmetic number, because the mean of its divisors is an integer number (214396).

Almost surely, 2^10644975 is an apocalyptic number.

10644975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10644975 is an abundant number, since it is smaller than the sum of its proper divisors (12509793).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10644975 is a wasteful number, since it uses less digits than its factorization.

10644975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 10644975 is about 3262.6637889921. The cubic root of 10644975 is about 219.9791646935.

The spelling of 10644975 in words is "ten million, six hundred forty-four thousand, nine hundred seventy-five".