5664889 has 4 divisors (see below), whose sum is σ = 5860260. Its totient is φ = 5469520.

The previous prime is 5664851. The next prime is 5664931. The reversal of 5664889 is 9884665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1392400 + 4272489 = 1180^2 + 2067^2 .

It is a cyclic number.

It is not a de Polignac number, because 5664889 - 2⁹ = 5664377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5664809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97642 + ... + 97699.

It is an arithmetic number, because the mean of its divisors is an integer number (1465065).

Almost surely, 2^5664889 is an apocalyptic number.

It is an amenable number.

5664889 is a deficient number, since it is larger than the sum of its proper divisors (195371).

5664889 is a wasteful number, since it uses less digits than its factorization.

5664889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195370.

The product of its digits is 414720, while the sum is 46.

The square root of 5664889 is about 2380.1027288754. The cubic root of 5664889 is about 178.2640633134.

The spelling of 5664889 in words is "five million, six hundred sixty-four thousand, eight hundred eighty-nine".