97310631 has 32 divisors (see below), whose sum is σ = 152824320. Its totient is φ = 54454400.

The previous prime is 97310627. The next prime is 97310659. The reversal of 97310631 is 13601379.

It is not a de Polignac number, because 97310631 - 2² = 97310627 is a prime.

It is a super-2 number, since 2×97310631² = 18938717811236322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97310621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19801 + ... + 24221.

It is an arithmetic number, because the mean of its divisors is an integer number (4775760).

Almost surely, 2^97310631 is an apocalyptic number.

97310631 is a deficient number, since it is larger than the sum of its proper divisors (55513689).

97310631 is a wasteful number, since it uses less digits than its factorization.

97310631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 97310631 is about 9864.6150963938. The cubic root of 97310631 is about 459.9600327594.

The spelling of 97310631 in words is "ninety-seven million, three hundred ten thousand, six hundred thirty-one".