5631664 has 20 divisors (see below), whose sum is σ = 10948456. Its totient is φ = 2806272.

The previous prime is 5631629. The next prime is 5631671. The reversal of 5631664 is 4661365.

It is a plaindrome in base 13.

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, 8032 + ... + 8704.

Almost surely, 2^5631664 is an apocalyptic number.

It is an amenable number.

5631664 is a deficient number, since it is larger than the sum of its proper divisors (5316792).

5631664 is a wasteful number, since it uses less digits than its factorization.

5631664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1198 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 5631664 is about 2373.1127238292. The cubic root of 5631664 is about 177.9148690250.

Subtracting from 5631664 its reverse (4661365), we obtain a cube (970299 = 99³).

The spelling of 5631664 in words is "five million, six hundred thirty-one thousand, six hundred sixty-four".