97418631 has 4 divisors (see below), whose sum is σ = 129891512. Its totient is φ = 64945752.

The previous prime is 97418623. The next prime is 97418683. The reversal of 97418631 is 13681479.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 97418631 - 2³ = 97418623 is a prime.

It is a super-2 number, since 2×97418631² = 18980779331828322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97418631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97418621) 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 3 ways as a sum of consecutive naturals, for example, 16236436 + ... + 16236441.

It is an arithmetic number, because the mean of its divisors is an integer number (32472878).

Almost surely, 2^97418631 is an apocalyptic number.

97418631 is a deficient number, since it is larger than the sum of its proper divisors (32472881).

97418631 is a wasteful number, since it uses less digits than its factorization.

97418631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32472880.

The product of its digits is 36288, while the sum is 39.

The square root of 97418631 is about 9870.0876895801. The cubic root of 97418631 is about 460.1301317399.

The spelling of 97418631 in words is "ninety-seven million, four hundred eighteen thousand, six hundred thirty-one".