90137660 has 24 divisors (see below), whose sum is σ = 189535920. Its totient is φ = 36008064.

The previous prime is 90137651. The next prime is 90137693. The reversal of 90137660 is 6673109.

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, 15656 + ... + 20624.

It is an arithmetic number, because the mean of its divisors is an integer number (7897330).

Almost surely, 2^90137660 is an apocalyptic number.

It is an amenable number.

90137660 is an abundant number, since it is smaller than the sum of its proper divisors (99398260).

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

90137660 is a wasteful number, since it uses less digits than its factorization.

90137660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885 (or 5883 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 90137660 is about 9494.0855273165. The cubic root of 90137660 is about 448.3688435119.

The spelling of 90137660 in words is "ninety million, one hundred thirty-seven thousand, six hundred sixty".