456921407 has 2 divisors, whose sum is σ = 456921408. Its totient is φ = 456921406.

The previous prime is 456921401. The next prime is 456921449. The reversal of 456921407 is 704129654.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 456921407 - 2¹² = 456917311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456921401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228460703 + 228460704.

It is an arithmetic number, because the mean of its divisors is an integer number (228460704).

Almost surely, 2^456921407 is an apocalyptic number.

456921407 is a deficient number, since it is larger than the sum of its proper divisors (1).

456921407 is an equidigital number, since it uses as much as digits as its factorization.

456921407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 456921407 is about 21375.7200346561. The cubic root of 456921407 is about 770.2183037629.

The spelling of 456921407 in words is "four hundred fifty-six million, nine hundred twenty-one thousand, four hundred seven".