8638424 has 16 divisors (see below), whose sum is σ = 16308000. Its totient is φ = 4289632.

The previous prime is 8638411. The next prime is 8638447. The reversal of 8638424 is 4248368.

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, 2432 + ... + 4815.

It is an arithmetic number, because the mean of its divisors is an integer number (1019250).

Almost surely, 2^8638424 is an apocalyptic number.

It is an amenable number.

8638424 is a deficient number, since it is larger than the sum of its proper divisors (7669576).

8638424 is a wasteful number, since it uses less digits than its factorization.

8638424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7402 (or 7398 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 8638424 is about 2939.1195960695. The cubic root of 8638424 is about 205.1846363514.

The spelling of 8638424 in words is "eight million, six hundred thirty-eight thousand, four hundred twenty-four".