97185957 has 32 divisors (see below), whose sum is σ = 150626304. Its totient is φ = 55084800.

The previous prime is 97185943. The next prime is 97186021. The reversal of 97185957 is 75958179.

It is not a de Polignac number, because 97185957 - 2¹⁰ = 97184933 is a prime.

It is a super-2 number, since 2×97185957² = 18890220476011698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97185857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106698 + ... + 107604.

It is an arithmetic number, because the mean of its divisors is an integer number (4707072).

Almost surely, 2^97185957 is an apocalyptic number.

It is an amenable number.

97185957 is a deficient number, since it is larger than the sum of its proper divisors (53440347).

97185957 is a wasteful number, since it uses less digits than its factorization.

97185957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129.

The product of its digits is 793800, while the sum is 51.

The square root of 97185957 is about 9858.2938178977. The cubic root of 97185957 is about 459.7635158113.

The spelling of 97185957 in words is "ninety-seven million, one hundred eighty-five thousand, nine hundred fifty-seven".