456668939 has 2 divisors, whose sum is σ = 456668940. Its totient is φ = 456668938.

The previous prime is 456668923. The next prime is 456668951. The reversal of 456668939 is 939866654.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 456668939 - 2⁴ = 456668923 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (456668999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228334469 + 228334470.

It is an arithmetic number, because the mean of its divisors is an integer number (228334470).

Almost surely, 2^456668939 is an apocalyptic number.

456668939 is a deficient number, since it is larger than the sum of its proper divisors (1).

456668939 is an equidigital number, since it uses as much as digits as its factorization.

456668939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 56.

The square root of 456668939 is about 21369.8137333951. The cubic root of 456668939 is about 770.0764184571.

The spelling of 456668939 in words is "four hundred fifty-six million, six hundred sixty-eight thousand, nine hundred thirty-nine".