97388631 has 24 divisors (see below), whose sum is σ = 150761520. Its totient is φ = 60362496.

The previous prime is 97388617. The next prime is 97388651. The reversal of 97388631 is 13688379.

It is a happy number.

97388631 is a `hidden beast` number, since 9 + 7 + 3 + 8 + 8 + 631 = 666.

It is not a de Polignac number, because 97388631 - 2⁶ = 97388567 is a prime.

It is a super-2 number, since 2×97388631² = 18969090896108322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97388611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8865 + ... + 16533.

It is an arithmetic number, because the mean of its divisors is an integer number (6281730).

Almost surely, 2^97388631 is an apocalyptic number.

97388631 is a deficient number, since it is larger than the sum of its proper divisors (53372889).

97388631 is a wasteful number, since it uses less digits than its factorization.

97388631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7775 (or 7772 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 97388631 is about 9868.5678292243. The cubic root of 97388631 is about 460.0828946388.

The spelling of 97388631 in words is "ninety-seven million, three hundred eighty-eight thousand, six hundred thirty-one".