470922721 has 2 divisors, whose sum is σ = 470922722. Its totient is φ = 470922720.

The previous prime is 470922707. The next prime is 470922737. The reversal of 470922721 is 127229074.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271096225 + 199826496 = 16465^2 + 14136^2 .

It is a cyclic number.

It is not a de Polignac number, because 470922721 - 2⁵ = 470922689 is a prime.

It is not a weakly prime, because it can be changed into another prime (470922521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235461360 + 235461361.

It is an arithmetic number, because the mean of its divisors is an integer number (235461361).

Almost surely, 2^470922721 is an apocalyptic number.

It is an amenable number.

470922721 is a deficient number, since it is larger than the sum of its proper divisors (1).

470922721 is an equidigital number, since it uses as much as digits as its factorization.

470922721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 470922721 is about 21700.7539269953. The cubic root of 470922721 is about 778.0064812011.

The spelling of 470922721 in words is "four hundred seventy million, nine hundred twenty-two thousand, seven hundred twenty-one".