89916590 has 32 divisors (see below), whose sum is σ = 165512160. Its totient is φ = 35160064.

The previous prime is 89916581. The next prime is 89916599. The reversal of 89916590 is 9561998.

It is an interprime number because it is at equal distance from previous prime (89916581) and next prime (89916599).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89916599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151334 + ... + 151926.

It is an arithmetic number, because the mean of its divisors is an integer number (5172255).

Almost surely, 2^89916590 is an apocalyptic number.

89916590 is a deficient number, since it is larger than the sum of its proper divisors (75595570).

89916590 is a wasteful number, since it uses less digits than its factorization.

89916590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 89916590 is about 9482.4358684886. The cubic root of 89916590 is about 448.0019896542.

The spelling of 89916590 in words is "eighty-nine million, nine hundred sixteen thousand, five hundred ninety".