97657944 has 64 divisors (see below), whose sum is σ = 249661440. Its totient is φ = 31825920.

The previous prime is 97657939. The next prime is 97657957. The reversal of 97657944 is 44975679.

Its product of digits (1905120) is a multiple of the sum of its prime factors (560).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379864 + ... + 380120.

It is an arithmetic number, because the mean of its divisors is an integer number (3900960).

Almost surely, 2^97657944 is an apocalyptic number.

It is an amenable number.

97657944 is an abundant number, since it is smaller than the sum of its proper divisors (152003496).

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

97657944 is a wasteful number, since it uses less digits than its factorization.

97657944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 556 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 97657944 is about 9882.2033980282. The cubic root of 97657944 is about 460.5066000344.

The spelling of 97657944 in words is "ninety-seven million, six hundred fifty-seven thousand, nine hundred forty-four".