90089165 has 16 divisors (see below), whose sum is σ = 115732800. Its totient is φ = 67116672.

The previous prime is 90089159. The next prime is 90089179. The reversal of 90089165 is 56198009.

It is a cyclic number.

It is not a de Polignac number, because 90089165 - 2¹⁴ = 90072781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2432 + ... + 13641.

It is an arithmetic number, because the mean of its divisors is an integer number (7233300).

Almost surely, 2^90089165 is an apocalyptic number.

90089165 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

90089165 is a deficient number, since it is larger than the sum of its proper divisors (25643635).

90089165 is a wasteful number, since it uses less digits than its factorization.

90089165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16156.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 90089165 is about 9491.5312252555. The cubic root of 90089165 is about 448.2884200512.

The spelling of 90089165 in words is "ninety million, eighty-nine thousand, one hundred sixty-five".