108639424 has 14 divisors (see below), whose sum is σ = 215581484. Its totient is φ = 54319680.

The previous prime is 108639413. The next prime is 108639431. The reversal of 108639424 is 424936801.

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 as a sum of consecutive naturals, namely, 848682 + ... + 848809.

Almost surely, 2^108639424 is an apocalyptic number.

It is an amenable number.

108639424 is a deficient number, since it is larger than the sum of its proper divisors (106942060).

108639424 is an equidigital number, since it uses as much as digits as its factorization.

108639424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697503 (or 1697493 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 108639424 is about 10423.0237455356. The cubic root of 108639424 is about 477.1583023639.

The spelling of 108639424 in words is "one hundred eight million, six hundred thirty-nine thousand, four hundred twenty-four".