572921893 has 2 divisors, whose sum is σ = 572921894. Its totient is φ = 572921892.

The previous prime is 572921887. The next prime is 572921903. The reversal of 572921893 is 398129275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359557444 + 213364449 = 18962^2 + 14607^2 .

It is a cyclic number.

It is not a de Polignac number, because 572921893 - 2⁵ = 572921861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (572921803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286460946 + 286460947.

It is an arithmetic number, because the mean of its divisors is an integer number (286460947).

Almost surely, 2^572921893 is an apocalyptic number.

It is an amenable number.

572921893 is a deficient number, since it is larger than the sum of its proper divisors (1).

572921893 is an equidigital number, since it uses as much as digits as its factorization.

572921893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 572921893 is about 23935.7868682022. The cubic root of 572921893 is about 830.5487700077.

The spelling of 572921893 in words is "five hundred seventy-two million, nine hundred twenty-one thousand, eight hundred ninety-three".