89901816 has 32 divisors (see below), whose sum is σ = 225624960. Its totient is φ = 29851232.

The previous prime is 89901809. The next prime is 89901821. The reversal of 89901816 is 61810998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810 + ... + 13433.

It is an arithmetic number, because the mean of its divisors is an integer number (7050780).

Almost surely, 2^89901816 is an apocalyptic number.

It is an amenable number.

89901816 is an abundant number, since it is smaller than the sum of its proper divisors (135723144).

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

89901816 is a wasteful number, since it uses less digits than its factorization.

89901816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14515 (or 14511 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 89901816 is about 9481.6568172445. The cubic root of 89901816 is about 447.9774515650.

The spelling of 89901816 in words is "eighty-nine million, nine hundred one thousand, eight hundred sixteen".