472567021 has 2 divisors, whose sum is σ = 472567022. Its totient is φ = 472567020.

The previous prime is 472567009. The next prime is 472567097. The reversal of 472567021 is 120765274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357777225 + 114789796 = 18915^2 + 10714^2 .

It is a cyclic number.

It is not a de Polignac number, because 472567021 - 2⁷ = 472566893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472567001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236283510 + 236283511.

It is an arithmetic number, because the mean of its divisors is an integer number (236283511).

Almost surely, 2^472567021 is an apocalyptic number.

It is an amenable number.

472567021 is a deficient number, since it is larger than the sum of its proper divisors (1).

472567021 is an equidigital number, since it uses as much as digits as its factorization.

472567021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 472567021 is about 21738.6066940823. The cubic root of 472567021 is about 778.9109395839.

The spelling of 472567021 in words is "four hundred seventy-two million, five hundred sixty-seven thousand, twenty-one".