97931097 has 24 divisors (see below), whose sum is σ = 155550720. Its totient is φ = 58877280.

The previous prime is 97931089. The next prime is 97931107. The reversal of 97931097 is 79013979.

It is not a de Polignac number, because 97931097 - 2³ = 97931089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97931027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8679 + ... + 16467.

It is an arithmetic number, because the mean of its divisors is an integer number (6481280).

Almost surely, 2^97931097 is an apocalyptic number.

It is an amenable number.

97931097 is a deficient number, since it is larger than the sum of its proper divisors (57619623).

97931097 is a wasteful number, since it uses less digits than its factorization.

97931097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7933 (or 7930 counting only the distinct ones).

The product of its (nonzero) digits is 107163, while the sum is 45.

The square root of 97931097 is about 9896.0141976454. The cubic root of 97931097 is about 460.9355518684.

The spelling of 97931097 in words is "ninety-seven million, nine hundred thirty-one thousand, ninety-seven".