860682257 has 2 divisors, whose sum is σ = 860682258. Its totient is φ = 860682256.

The previous prime is 860682227. The next prime is 860682289. The reversal of 860682257 is 752286068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 859134721 + 1547536 = 29311^2 + 1244^2 .

It is a cyclic number.

It is not a de Polignac number, because 860682257 - 2¹⁰ = 860681233 is a prime.

It is a super-2 number, since 2×860682257² = 1481547895029228098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (860682227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430341128 + 430341129.

It is an arithmetic number, because the mean of its divisors is an integer number (430341129).

Almost surely, 2^860682257 is an apocalyptic number.

It is an amenable number.

860682257 is a deficient number, since it is larger than the sum of its proper divisors (1).

860682257 is an equidigital number, since it uses as much as digits as its factorization.

860682257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 860682257 is about 29337.3866763896. The cubic root of 860682257 is about 951.2199496195.

The spelling of 860682257 in words is "eight hundred sixty million, six hundred eighty-two thousand, two hundred fifty-seven".