89090238 has 16 divisors (see below), whose sum is σ = 182324736. Its totient is φ = 29006040.

The previous prime is 89090227. The next prime is 89090263. The reversal of 89090238 is 83209098.

It is a junction number, because it is equal to n+sod(n) for n = 89090196 and 89090205.

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, 172398 + ... + 172913.

It is an arithmetic number, because the mean of its divisors is an integer number (11395296).

Almost surely, 2^89090238 is an apocalyptic number.

89090238 is an abundant number, since it is smaller than the sum of its proper divisors (93234498).

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

89090238 is a wasteful number, since it uses less digits than its factorization.

89090238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345359.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 89090238 is about 9438.7625248228. The cubic root of 89090238 is about 446.6253535959.

The spelling of 89090238 in words is "eighty-nine million, ninety thousand, two hundred thirty-eight".