97315887 has 4 divisors (see below), whose sum is σ = 129754520. Its totient is φ = 64877256.

The previous prime is 97315879. The next prime is 97315949. The reversal of 97315887 is 78851379.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 97315887 - 2³ = 97315879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97315817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16219312 + ... + 16219317.

It is an arithmetic number, because the mean of its divisors is an integer number (32438630).

Almost surely, 2^97315887 is an apocalyptic number.

97315887 is a deficient number, since it is larger than the sum of its proper divisors (32438633).

97315887 is a wasteful number, since it uses less digits than its factorization.

97315887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32438632.

The product of its digits is 423360, while the sum is 48.

The square root of 97315887 is about 9864.8814995417. The cubic root of 97315887 is about 459.9683138225.

The spelling of 97315887 in words is "ninety-seven million, three hundred fifteen thousand, eight hundred eighty-seven".