97165918 has 8 divisors (see below), whose sum is σ = 146009448. Its totient is φ = 48496104.

The previous prime is 97165891. The next prime is 97165919. The reversal of 97165918 is 81956179.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97165919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42021 + ... + 44272.

It is an arithmetic number, because the mean of its divisors is an integer number (18251181).

Almost surely, 2^97165918 is an apocalyptic number.

97165918 is a deficient number, since it is larger than the sum of its proper divisors (48843530).

97165918 is a wasteful number, since it uses less digits than its factorization.

97165918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86858.

The product of its digits is 136080, while the sum is 46.

The square root of 97165918 is about 9857.2774131603. The cubic root of 97165918 is about 459.7319137340.

The spelling of 97165918 in words is "ninety-seven million, one hundred sixty-five thousand, nine hundred eighteen".