564403409 has 2 divisors, whose sum is σ = 564403410. Its totient is φ = 564403408.

The previous prime is 564403351. The next prime is 564403429. The reversal of 564403409 is 904304465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344919184 + 219484225 = 18572^2 + 14815^2 .

It is a cyclic number.

It is not a de Polignac number, because 564403409 - 2²⁴ = 547626193 is a prime.

It is not a weakly prime, because it can be changed into another prime (564403429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282201704 + 282201705.

It is an arithmetic number, because the mean of its divisors is an integer number (282201705).

Almost surely, 2^564403409 is an apocalyptic number.

It is an amenable number.

564403409 is a deficient number, since it is larger than the sum of its proper divisors (1).

564403409 is an equidigital number, since it uses as much as digits as its factorization.

564403409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 564403409 is about 23757.1759474901. The cubic root of 564403409 is about 826.4118629334.

The spelling of 564403409 in words is "five hundred sixty-four million, four hundred three thousand, four hundred nine".