90588988 has 24 divisors (see below), whose sum is σ = 191836512. Its totient is φ = 36539904.

The previous prime is 90588961. The next prime is 90589007. The reversal of 90588988 is 88988509.

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, 94681 + ... + 95632.

It is an arithmetic number, because the mean of its divisors is an integer number (7993188).

Almost surely, 2^90588988 is an apocalyptic number.

It is an amenable number.

90588988 is an abundant number, since it is smaller than the sum of its proper divisors (101247524).

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

90588988 is a wasteful number, since it uses less digits than its factorization.

90588988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190341 (or 190339 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 55.

The square root of 90588988 is about 9517.8247514860. The cubic root of 90588988 is about 449.1159400531.

The spelling of 90588988 in words is "ninety million, five hundred eighty-eight thousand, nine hundred eighty-eight".