90872580 has 48 divisors (see below), whose sum is σ = 255548160. Its totient is φ = 24127488.

The previous prime is 90872557. The next prime is 90872591. The reversal of 90872580 is 8527809.

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, 11172 + ... + 17508.

It is an arithmetic number, because the mean of its divisors is an integer number (5323920).

Almost surely, 2^90872580 is an apocalyptic number.

It is an amenable number.

90872580 is an abundant number, since it is smaller than the sum of its proper divisors (164675580).

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

90872580 is a wasteful number, since it uses less digits than its factorization.

90872580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6588 (or 6586 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 90872580 is about 9532.7110519516. The cubic root of 90872580 is about 449.5841095793.

The spelling of 90872580 in words is "ninety million, eight hundred seventy-two thousand, five hundred eighty".