5664407 has 4 divisors (see below), whose sum is σ = 6473616. Its totient is φ = 4855200.

The previous prime is 5664401. The next prime is 5664419. The reversal of 5664407 is 7044665.

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

It is not a de Polignac number, because 5664407 - 2⁸ = 5664151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5664401) 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, 404594 + ... + 404607.

It is an arithmetic number, because the mean of its divisors is an integer number (1618404).

Almost surely, 2^5664407 is an apocalyptic number.

5664407 is a deficient number, since it is larger than the sum of its proper divisors (809209).

5664407 is an equidigital number, since it uses as much as digits as its factorization.

5664407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809208.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 5664407 is about 2380.0014705878. The cubic root of 5664407 is about 178.2590072735.

The spelling of 5664407 in words is "five million, six hundred sixty-four thousand, four hundred seven".