564707389 has 2 divisors, whose sum is σ = 564707390. Its totient is φ = 564707388.

The previous prime is 564707371. The next prime is 564707393. The reversal of 564707389 is 983707465.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420947289 + 143760100 = 20517^2 + 11990^2 .

It is a cyclic number.

It is not a de Polignac number, because 564707389 - 2²³ = 556318781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564707369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282353694 + 282353695.

It is an arithmetic number, because the mean of its divisors is an integer number (282353695).

Almost surely, 2^564707389 is an apocalyptic number.

It is an amenable number.

564707389 is a deficient number, since it is larger than the sum of its proper divisors (1).

564707389 is an equidigital number, since it uses as much as digits as its factorization.

564707389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 564707389 is about 23763.5727322303. The cubic root of 564707389 is about 826.5602010356.

The spelling of 564707389 in words is "five hundred sixty-four million, seven hundred seven thousand, three hundred eighty-nine".