863273231 has 2 divisors, whose sum is σ = 863273232. Its totient is φ = 863273230.

The previous prime is 863273221. The next prime is 863273249. The reversal of 863273231 is 132372368.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-863273231 is a prime.

It is a super-2 number, since 2×863273231² = 1490481342722358722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 863273191 and 863273200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863273221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431636615 + 431636616.

It is an arithmetic number, because the mean of its divisors is an integer number (431636616).

Almost surely, 2^863273231 is an apocalyptic number.

863273231 is a deficient number, since it is larger than the sum of its proper divisors (1).

863273231 is an equidigital number, since it uses as much as digits as its factorization.

863273231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 863273231 is about 29381.5117208084. The cubic root of 863273231 is about 952.1735021290.

The spelling of 863273231 in words is "eight hundred sixty-three million, two hundred seventy-three thousand, two hundred thirty-one".