97403631 has 16 divisors (see below), whose sum is σ = 142235520. Its totient is φ = 58923360.

The previous prime is 97403629. The next prime is 97403653. The reversal of 97403631 is 13630479.

It is not a de Polignac number, because 97403631 - 2¹ = 97403629 is a prime.

It is a super-2 number, since 2×97403631² = 18974934663968322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97403592 and 97403601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97403611) 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, 18865 + ... + 23466.

It is an arithmetic number, because the mean of its divisors is an integer number (8889720).

Almost surely, 2^97403631 is an apocalyptic number.

97403631 is a deficient number, since it is larger than the sum of its proper divisors (44831889).

97403631 is a wasteful number, since it uses less digits than its factorization.

97403631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42406.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 97403631 is about 9869.3277886592. The cubic root of 97403631 is about 460.1065144018.

The spelling of 97403631 in words is "ninety-seven million, four hundred three thousand, six hundred thirty-one".