90785492 has 12 divisors (see below), whose sum is σ = 181571040. Its totient is φ = 38908056.

The previous prime is 90785479. The next prime is 90785509. The reversal of 90785492 is 29458709.

It is a happy number.

90785492 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1621142 + ... + 1621197.

It is an arithmetic number, because the mean of its divisors is an integer number (15130920).

Almost surely, 2^90785492 is an apocalyptic number.

It is an amenable number.

90785492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90785492 is a wasteful number, since it uses less digits than its factorization.

90785492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242350 (or 3242348 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 90785492 is about 9528.1421064130. The cubic root of 90785492 is about 449.4404435978.

The spelling of 90785492 in words is "ninety million, seven hundred eighty-five thousand, four hundred ninety-two".