572342789 has 2 divisors, whose sum is σ = 572342790. Its totient is φ = 572342788.

The previous prime is 572342783. The next prime is 572342843. The reversal of 572342789 is 987243275.

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., 288150625 + 284192164 = 16975^2 + 16858^2 .

It is a cyclic number.

It is not a de Polignac number, because 572342789 - 2²⁴ = 555565573 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (572342783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286171394 + 286171395.

It is an arithmetic number, because the mean of its divisors is an integer number (286171395).

Almost surely, 2^572342789 is an apocalyptic number.

It is an amenable number.

572342789 is a deficient number, since it is larger than the sum of its proper divisors (1).

572342789 is an equidigital number, since it uses as much as digits as its factorization.

572342789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 572342789 is about 23923.6867769163. The cubic root of 572342789 is about 830.2688387369.

The spelling of 572342789 in words is "five hundred seventy-two million, three hundred forty-two thousand, seven hundred eighty-nine".