860481257 has 2 divisors, whose sum is σ = 860481258. Its totient is φ = 860481256.

The previous prime is 860481241. The next prime is 860481263. The reversal of 860481257 is 752184068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 831976336 + 28504921 = 28844^2 + 5339^2 .

It is a cyclic number.

It is not a de Polignac number, because 860481257 - 2⁴ = 860481241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (860481857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430240628 + 430240629.

It is an arithmetic number, because the mean of its divisors is an integer number (430240629).

Almost surely, 2^860481257 is an apocalyptic number.

It is an amenable number.

860481257 is a deficient number, since it is larger than the sum of its proper divisors (1).

860481257 is an equidigital number, since it uses as much as digits as its factorization.

860481257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 860481257 is about 29333.9608133644. The cubic root of 860481257 is about 951.1458959278.

The spelling of 860481257 in words is "eight hundred sixty million, four hundred eighty-one thousand, two hundred fifty-seven".