90117084 has 48 divisors (see below), whose sum is σ = 214445952. Its totient is φ = 29449152.

The previous prime is 90117073. The next prime is 90117091. The reversal of 90117084 is 48071109.

It is a congruent number.

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, 172047 + ... + 172569.

It is an arithmetic number, because the mean of its divisors is an integer number (4467624).

Almost surely, 2^90117084 is an apocalyptic number.

It is an amenable number.

90117084 is an abundant number, since it is smaller than the sum of its proper divisors (124328868).

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

90117084 is a wasteful number, since it uses less digits than its factorization.

90117084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 90117084 is about 9493.0018434634. The cubic root of 90117084 is about 448.3347240720.

The spelling of 90117084 in words is "ninety million, one hundred seventeen thousand, eighty-four".