90863424 has 56 divisors (see below), whose sum is σ = 267126720. Its totient is φ = 30287232.

The previous prime is 90863411. The next prime is 90863431. The reversal of 90863424 is 42436809.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 7 ways as a sum of consecutive naturals, for example, 24564 + ... + 28019.

It is an arithmetic number, because the mean of its divisors is an integer number (4770120).

Almost surely, 2^90863424 is an apocalyptic number.

It is an amenable number.

90863424 is an abundant number, since it is smaller than the sum of its proper divisors (176263296).

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

90863424 is a wasteful number, since it uses less digits than its factorization.

90863424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52604 (or 52588 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 90863424 is about 9532.2307987165. The cubic root of 90863424 is about 449.5690095701.

The spelling of 90863424 in words is "ninety million, eight hundred sixty-three thousand, four hundred twenty-four".