97165518 has 16 divisors (see below), whose sum is σ = 194445696. Its totient is φ = 32369400.

The previous prime is 97165517. The next prime is 97165561. The reversal of 97165518 is 81556179.

It is a super-2 number, since 2×97165518² = 18882275776416648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97165518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97165511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9543 + ... + 16893.

It is an arithmetic number, because the mean of its divisors is an integer number (12152856).

Almost surely, 2^97165518 is an apocalyptic number.

97165518 is an abundant number, since it is smaller than the sum of its proper divisors (97280178).

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

97165518 is a wasteful number, since it uses less digits than its factorization.

97165518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559.

The product of its digits is 75600, while the sum is 42.

The square root of 97165518 is about 9857.2571235613. The cubic root of 97165518 is about 459.7312828783.

The spelling of 97165518 in words is "ninety-seven million, one hundred sixty-five thousand, five hundred eighteen".