89644506 has 32 divisors (see below), whose sum is σ = 205590528. Its totient is φ = 25526640.

The previous prime is 89644421. The next prime is 89644517. The reversal of 89644506 is 60544698.

It is a super-2 number, since 2×89644506² = 16072274911968072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 9631 + ... + 16493.

It is an arithmetic number, because the mean of its divisors is an integer number (6424704).

Almost surely, 2^89644506 is an apocalyptic number.

89644506 is an abundant number, since it is smaller than the sum of its proper divisors (115946022).

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

89644506 is a wasteful number, since it uses less digits than its factorization.

89644506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7186.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 89644506 is about 9468.0782633014. The cubic root of 89644506 is about 447.5496544051.

The spelling of 89644506 in words is "eighty-nine million, six hundred forty-four thousand, five hundred six".