5664669 has 4 divisors (see below), whose sum is σ = 7552896. Its totient is φ = 3776444.

The previous prime is 5664653. The next prime is 5664671. The reversal of 5664669 is 9664665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5664669 - 2⁴ = 5664653 is a prime.

It is a super-2 number, since 2×5664669² = 64176949759122, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 13.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 5664669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5664629) 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, 944109 + ... + 944114.

It is an arithmetic number, because the mean of its divisors is an integer number (1888224).

Almost surely, 2^5664669 is an apocalyptic number.

It is an amenable number.

5664669 is a deficient number, since it is larger than the sum of its proper divisors (1888227).

5664669 is a wasteful number, since it uses less digits than its factorization.

5664669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888226.

The product of its digits is 233280, while the sum is 42.

The square root of 5664669 is about 2380.0565119341. The cubic root of 5664669 is about 178.2617556129.

The spelling of 5664669 in words is "five million, six hundred sixty-four thousand, six hundred sixty-nine".