6239664 has 30 divisors (see below), whose sum is σ = 17462796. Its totient is φ = 2079840.

The previous prime is 6239659. The next prime is 6239677. The reversal of 6239664 is 4669326.

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

It is a nude number because it is divisible by every one of its digits.

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 5 ways as a sum of consecutive naturals, for example, 21522 + ... + 21809.

Almost surely, 2^6239664 is an apocalyptic number.

It is an amenable number.

6239664 is an abundant number, since it is smaller than the sum of its proper divisors (11223132).

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

6239664 is a wasteful number, since it uses less digits than its factorization.

6239664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43345 (or 43336 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 6239664 is about 2497.9319446294. The cubic root of 6239664 is about 184.0999771731.

It can be divided in two parts, 6239 and 664, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 6239664 in words is "six million, two hundred thirty-nine thousand, six hundred sixty-four".