90712580 has 48 divisors (see below), whose sum is σ = 225227520. Its totient is φ = 30027648.

The previous prime is 90712579. The next prime is 90712591. The reversal of 90712580 is 8521709.

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, 7112 + ... + 15231.

It is an arithmetic number, because the mean of its divisors is an integer number (4692240).

Almost surely, 2^90712580 is an apocalyptic number.

It is an amenable number.

90712580 is an abundant number, since it is smaller than the sum of its proper divisors (134514940).

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

90712580 is a wasteful number, since it uses less digits than its factorization.

90712580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22388 (or 22386 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 90712580 is about 9524.3151984802. The cubic root of 90712580 is about 449.3200925832.

The spelling of 90712580 in words is "ninety million, seven hundred twelve thousand, five hundred eighty".