90087792 has 20 divisors (see below), whose sum is σ = 232726920. Its totient is φ = 30029248.

The previous prime is 90087791. The next prime is 90087799. The reversal of 90087792 is 29778009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90087791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938367 + ... + 938462.

It is an arithmetic number, because the mean of its divisors is an integer number (11636346).

Almost surely, 2^90087792 is an apocalyptic number.

It is an amenable number.

90087792 is an abundant number, since it is smaller than the sum of its proper divisors (142639128).

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

90087792 is a wasteful number, since it uses less digits than its factorization.

90087792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876840 (or 1876834 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 90087792 is about 9491.4588973455. The cubic root of 90087792 is about 448.2861426662.

The spelling of 90087792 in words is "ninety million, eighty-seven thousand, seven hundred ninety-two".