5659664 has 20 divisors (see below), whose sum is σ = 11013804. Its totient is φ = 2817408.

The previous prime is 5659651. The next prime is 5659673. The reversal of 5659664 is 4669565.

It can be written as a sum of positive squares in 2 ways, for example, as 2274064 + 3385600 = 1508^2 + 1840^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3794 + ... + 5070.

Almost surely, 2^5659664 is an apocalyptic number.

It is an amenable number.

5659664 is a deficient number, since it is larger than the sum of its proper divisors (5354140).

5659664 is a wasteful number, since it uses less digits than its factorization.

5659664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562 (or 1556 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 5659664 is about 2379.0048339589. The cubic root of 5659664 is about 178.2092392769.

Subtracting from 5659664 its reverse (4669565), we obtain a palindrome (990099).

The spelling of 5659664 in words is "five million, six hundred fifty-nine thousand, six hundred sixty-four".