863231 has 2 divisors, whose sum is σ = 863232. Its totient is φ = 863230.

The previous prime is 863197. The next prime is 863251. The reversal of 863231 is 132368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 863231 - 2¹⁰ = 862207 is a prime.

It is a super-2 number, since 2×863231² = 1490335518722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 863197 and 863206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431615 + 431616.

It is an arithmetic number, because the mean of its divisors is an integer number (431616).

2⁸⁶³²³¹ is an apocalyptic number.

863231 is a deficient number, since it is larger than the sum of its proper divisors (1).

863231 is an equidigital number, since it uses as much as digits as its factorization.

863231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 863231 is about 929.1022548676. The cubic root of 863231 is about 95.2157975220.

Adding to 863231 its reverse (132368), we get a palindrome (995599).

The spelling of 863231 in words is "eight hundred sixty-three thousand, two hundred thirty-one".