5644679 has 2 divisors, whose sum is σ = 5644680. Its totient is φ = 5644678.

The previous prime is 5644673. The next prime is 5644687. The reversal of 5644679 is 9764465.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5644679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5644673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822339 + 2822340.

It is an arithmetic number, because the mean of its divisors is an integer number (2822340).

Almost surely, 2^5644679 is an apocalyptic number.

5644679 is a deficient number, since it is larger than the sum of its proper divisors (1).

5644679 is an equidigital number, since it uses as much as digits as its factorization.

5644679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 5644679 is about 2375.8533203883. The cubic root of 5644679 is about 178.0518196979.

The spelling of 5644679 in words is "five million, six hundred forty-four thousand, six hundred seventy-nine".