97155474 has 32 divisors (see below), whose sum is σ = 220274880. Its totient is φ = 28320192.

The previous prime is 97155449. The next prime is 97155497. The reversal of 97155474 is 47455179.

It is a happy number.

It is a super-2 number, since 2×97155474² = 18878372256329352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31297 + ... + 34260.

It is an arithmetic number, because the mean of its divisors is an integer number (6883590).

Almost surely, 2^97155474 is an apocalyptic number.

97155474 is an abundant number, since it is smaller than the sum of its proper divisors (123119406).

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

97155474 is a wasteful number, since it uses less digits than its factorization.

97155474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65594.

The product of its digits is 176400, while the sum is 42.

The square root of 97155474 is about 9856.7476380396. The cubic root of 97155474 is about 459.7154415242.

The spelling of 97155474 in words is "ninety-seven million, one hundred fifty-five thousand, four hundred seventy-four".