863081 has 2 divisors, whose sum is σ = 863082. Its totient is φ = 863080.

The previous prime is 863047. The next prime is 863087. The reversal of 863081 is 180368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 24025 = 916^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 863081 - 2⁶ = 863017 is a prime.

It is a super-2 number, since 2×863081² = 1489817625122, 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 863081.

It is not a weakly prime, because it can be changed into another prime (863087) 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, 431540 + 431541.

It is an arithmetic number, because the mean of its divisors is an integer number (431541).

2⁸⁶³⁰⁸¹ is an apocalyptic number.

It is an amenable number.

863081 is a deficient number, since it is larger than the sum of its proper divisors (1).

863081 is an equidigital number, since it uses as much as digits as its factorization.

863081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 863081 is about 929.0215282759. The cubic root of 863081 is about 95.2102821204.

The spelling of 863081 in words is "eight hundred sixty-three thousand, eighty-one".