97649975 has 6 divisors (see below), whose sum is σ = 121086000. Its totient is φ = 78119960.

The previous prime is 97649963. The next prime is 97650041. The reversal of 97649975 is 57994679.

It is not a de Polignac number, because 97649975 - 2⁸ = 97649719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97649975.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1952975 + ... + 1953024.

It is an arithmetic number, because the mean of its divisors is an integer number (20181000).

Almost surely, 2^97649975 is an apocalyptic number.

97649975 is a deficient number, since it is larger than the sum of its proper divisors (23436025).

97649975 is a wasteful number, since it uses less digits than its factorization.

97649975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906009 (or 3906004 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 56.

The square root of 97649975 is about 9881.8001902487. The cubic root of 97649975 is about 460.4940737384.

The spelling of 97649975 in words is "ninety-seven million, six hundred forty-nine thousand, nine hundred seventy-five".