89870136 has 32 divisors (see below), whose sum is σ = 225104400. Its totient is φ = 29899520.

The previous prime is 89870119. The next prime is 89870161. The reversal of 89870136 is 63107898.

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, 10366 + ... + 16946.

Almost surely, 2^89870136 is an apocalyptic number.

It is an amenable number.

89870136 is an abundant number, since it is smaller than the sum of its proper divisors (135234264).

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

89870136 is a wasteful number, since it uses less digits than its factorization.

89870136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7159 (or 7155 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 89870136 is about 9479.9860759391. The cubic root of 89870136 is about 447.9248252902.

The spelling of 89870136 in words is "eighty-nine million, eight hundred seventy thousand, one hundred thirty-six".