872531057 has 2 divisors, whose sum is σ = 872531058. Its totient is φ = 872531056.

The previous prime is 872531041. The next prime is 872531087. The reversal of 872531057 is 750135278.

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., 672053776 + 200477281 = 25924^2 + 14159^2 .

It is a cyclic number.

It is not a de Polignac number, because 872531057 - 2⁴ = 872531041 is a prime.

It is a super-2 number, since 2×872531057² = 1522620890859074498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 872531057.

It is not a weakly prime, because it can be changed into another prime (872531087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436265528 + 436265529.

It is an arithmetic number, because the mean of its divisors is an integer number (436265529).

Almost surely, 2^872531057 is an apocalyptic number.

It is an amenable number.

872531057 is a deficient number, since it is larger than the sum of its proper divisors (1).

872531057 is an equidigital number, since it uses as much as digits as its factorization.

872531057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 872531057 is about 29538.6366814719. The cubic root of 872531057 is about 955.5651404969.

The spelling of 872531057 in words is "eight hundred seventy-two million, five hundred thirty-one thousand, fifty-seven".