860403281 has 2 divisors, whose sum is σ = 860403282. Its totient is φ = 860403280.

The previous prime is 860403263. The next prime is 860403301. The reversal of 860403281 is 182304068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463756225 + 396647056 = 21535^2 + 19916^2 .

It is a cyclic number.

It is not a de Polignac number, because 860403281 - 2¹⁸ = 860141137 is a prime.

It is a super-2 number, since 2×860403281² = 1480587611911129922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (860402281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430201640 + 430201641.

It is an arithmetic number, because the mean of its divisors is an integer number (430201641).

Almost surely, 2^860403281 is an apocalyptic number.

It is an amenable number.

860403281 is a deficient number, since it is larger than the sum of its proper divisors (1).

860403281 is an equidigital number, since it uses as much as digits as its factorization.

860403281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 860403281 is about 29332.6316753202. The cubic root of 860403281 is about 951.1171644119.

The spelling of 860403281 in words is "eight hundred sixty million, four hundred three thousand, two hundred eighty-one".