89885165 has 4 divisors (see below), whose sum is σ = 107862204. Its totient is φ = 71908128.

The previous prime is 89885153. The next prime is 89885183. The reversal of 89885165 is 56158898.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56158898 = 2 ⋅28079449.

It can be written as a sum of positive squares in 2 ways, for example, as 18550249 + 71334916 = 4307^2 + 8446^2 .

It is a cyclic number.

It is not a de Polignac number, because 89885165 - 2⁶ = 89885101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8988512 + ... + 8988521.

It is an arithmetic number, because the mean of its divisors is an integer number (26965551).

Almost surely, 2^89885165 is an apocalyptic number.

It is an amenable number.

89885165 is a deficient number, since it is larger than the sum of its proper divisors (17977039).

89885165 is a wasteful number, since it uses less digits than its factorization.

89885165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17977038.

The product of its digits is 691200, while the sum is 50.

The square root of 89885165 is about 9480.7787127430. The cubic root of 89885165 is about 447.9497927499.

The spelling of 89885165 in words is "eighty-nine million, eight hundred eighty-five thousand, one hundred sixty-five".