97390816 has 24 divisors (see below), whose sum is σ = 198351720. Its totient is φ = 47015808.

The previous prime is 97390801. The next prime is 97390817. The reversal of 97390816 is 61809379.

It is a super-2 number, since 2×97390816² = 18969942082291712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97390817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51546 + ... + 53401.

It is an arithmetic number, because the mean of its divisors is an integer number (8264655).

Almost surely, 2^97390816 is an apocalyptic number.

It is an amenable number.

97390816 is an abundant number, since it is smaller than the sum of its proper divisors (100960904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97390816 is a wasteful number, since it uses less digits than its factorization.

97390816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104986 (or 104978 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 97390816 is about 9868.6785336234. The cubic root of 97390816 is about 460.0863354019.

The spelling of 97390816 in words is "ninety-seven million, three hundred ninety thousand, eight hundred sixteen".