872057 has 2 divisors, whose sum is σ = 872058. Its totient is φ = 872056.

The previous prime is 872041. The next prime is 872071. The reversal of 872057 is 750278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 781456 + 90601 = 884^2 + 301^2 .

It is a cyclic number.

It is not a de Polignac number, because 872057 - 2⁴ = 872041 is a prime.

It is a super-2 number, since 2×872057² = 1520966822498, which contains 22 as substring.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872057.

It is not a weakly prime, because it can be changed into another prime (872017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436028 + 436029.

It is an arithmetic number, because the mean of its divisors is an integer number (436029).

2⁸⁷²⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

872057 is a deficient number, since it is larger than the sum of its proper divisors (1).

872057 is an equidigital number, since it uses as much as digits as its factorization.

872057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 872057 is about 933.8399220423. The cubic root of 872057 is about 95.5392052329.

The spelling of 872057 in words is "eight hundred seventy-two thousand, fifty-seven".