97650631 has 16 divisors (see below), whose sum is σ = 108960768. Its totient is φ = 86940000.

The previous prime is 97650613. The next prime is 97650647. The reversal of 97650631 is 13605679.

It is a cyclic number.

It is not a de Polignac number, because 97650631 - 2⁵ = 97650599 is a prime.

It is a super-2 number, since 2×97650631² = 19071291469396322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97650611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42256 + ... + 44506.

It is an arithmetic number, because the mean of its divisors is an integer number (6810048).

Almost surely, 2^97650631 is an apocalyptic number.

97650631 is a deficient number, since it is larger than the sum of its proper divisors (11310137).

97650631 is a wasteful number, since it uses less digits than its factorization.

97650631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 97650631 is about 9881.8333825257. The cubic root of 97650631 is about 460.4951049162.

The spelling of 97650631 in words is "ninety-seven million, six hundred fifty thousand, six hundred thirty-one".