456394987 has 2 divisors, whose sum is σ = 456394988. Its totient is φ = 456394986.

The previous prime is 456394973. The next prime is 456394993. The reversal of 456394987 is 789493654.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456394987 is a prime.

It is not a weakly prime, because it can be changed into another prime (456394787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228197493 + 228197494.

It is an arithmetic number, because the mean of its divisors is an integer number (228197494).

Almost surely, 2^456394987 is an apocalyptic number.

456394987 is a deficient number, since it is larger than the sum of its proper divisors (1).

456394987 is an equidigital number, since it uses as much as digits as its factorization.

456394987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 55.

The square root of 456394987 is about 21363.4029826711. The cubic root of 456394987 is about 769.9224001182.

The spelling of 456394987 in words is "four hundred fifty-six million, three hundred ninety-four thousand, nine hundred eighty-seven".