90939624 has 32 divisors (see below), whose sum is σ = 239316000. Its totient is φ = 28717632.

The previous prime is 90939619. The next prime is 90939637. The reversal of 90939624 is 42693909.

It is a super-2 number, since 2×90939624² = 16540030426522752, 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 7 ways as a sum of consecutive naturals, for example, 99259 + ... + 100170.

It is an arithmetic number, because the mean of its divisors is an integer number (7478625).

Almost surely, 2^90939624 is an apocalyptic number.

It is an amenable number.

90939624 is an abundant number, since it is smaller than the sum of its proper divisors (148376376).

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

90939624 is a wasteful number, since it uses less digits than its factorization.

90939624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199457 (or 199453 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 90939624 is about 9536.2269268301. The cubic root of 90939624 is about 449.6946471671.

The spelling of 90939624 in words is "ninety million, nine hundred thirty-nine thousand, six hundred twenty-four".