90785484 has 36 divisors (see below), whose sum is σ = 236891200. Its totient is φ = 29285280.

The previous prime is 90785479. The next prime is 90785509. The reversal of 90785484 is 48458709.

90785484 is a `hidden beast` number, since 90 + 7 + 85 + 484 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×90785484² = 16484008210228512, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 39559 + ... + 41790.

Almost surely, 2^90785484 is an apocalyptic number.

It is an amenable number.

90785484 is an abundant number, since it is smaller than the sum of its proper divisors (146105716).

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

90785484 is a wasteful number, since it uses less digits than its factorization.

90785484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81390 (or 81385 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 90785484 is about 9528.1416866040. The cubic root of 90785484 is about 449.4404303962.

The spelling of 90785484 in words is "ninety million, seven hundred eighty-five thousand, four hundred eighty-four".