456561863 has 2 divisors, whose sum is σ = 456561864. Its totient is φ = 456561862.

The previous prime is 456561857. The next prime is 456561899. The reversal of 456561863 is 368165654.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 456561863 - 2⁸ = 456561607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456561563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228280931 + 228280932.

It is an arithmetic number, because the mean of its divisors is an integer number (228280932).

Almost surely, 2^456561863 is an apocalyptic number.

456561863 is a deficient number, since it is larger than the sum of its proper divisors (1).

456561863 is an equidigital number, since it uses as much as digits as its factorization.

456561863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 44.

The square root of 456561863 is about 21367.3082768981. The cubic root of 456561863 is about 770.0162266778.

The spelling of 456561863 in words is "four hundred fifty-six million, five hundred sixty-one thousand, eight hundred sixty-three".