5664623 has 2 divisors, whose sum is σ = 5664624. Its totient is φ = 5664622.

The previous prime is 5664611. The next prime is 5664629. The reversal of 5664623 is 3264665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5664623 - 2¹² = 5660527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5664623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5664629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832311 + 2832312.

It is an arithmetic number, because the mean of its divisors is an integer number (2832312).

Almost surely, 2^5664623 is an apocalyptic number.

5664623 is a deficient number, since it is larger than the sum of its proper divisors (1).

5664623 is an equidigital number, since it uses as much as digits as its factorization.

5664623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 32.

The square root of 5664623 is about 2380.0468482784. The cubic root of 5664623 is about 178.2612730862.

The spelling of 5664623 in words is "five million, six hundred sixty-four thousand, six hundred twenty-three".