456629609 has 4 divisors (see below), whose sum is σ = 465245316. Its totient is φ = 448013904.

The previous prime is 456629573. The next prime is 456629623. The reversal of 456629609 is 906926654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906926654 = 2 ⋅453463327.

It can be written as a sum of positive squares in 2 ways, for example, as 188980009 + 267649600 = 13747^2 + 16360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456629609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (456629629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4307774 + ... + 4307879.

It is an arithmetic number, because the mean of its divisors is an integer number (116311329).

Almost surely, 2^456629609 is an apocalyptic number.

It is an amenable number.

456629609 is a deficient number, since it is larger than the sum of its proper divisors (8615707).

456629609 is an equidigital number, since it uses as much as digits as its factorization.

456629609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615706.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 456629609 is about 21368.8934903050. The cubic root of 456629609 is about 770.0543105561.

The spelling of 456629609 in words is "four hundred fifty-six million, six hundred twenty-nine thousand, six hundred nine".