864318431 has 2 divisors, whose sum is σ = 864318432. Its totient is φ = 864318430.

The previous prime is 864318401. The next prime is 864318461. The reversal of 864318431 is 134813468.

It is a balanced prime because it is at equal distance from previous prime (864318401) and next prime (864318461).

It is a cyclic number.

It is not a de Polignac number, because 864318431 - 2¹⁰ = 864317407 is a prime.

It is a super-2 number, since 2×864318431² = 1494092700332603522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864318401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432159215 + 432159216.

It is an arithmetic number, because the mean of its divisors is an integer number (432159216).

Almost surely, 2^864318431 is an apocalyptic number.

864318431 is a deficient number, since it is larger than the sum of its proper divisors (1).

864318431 is an equidigital number, since it uses as much as digits as its factorization.

864318431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 864318431 is about 29399.2930357177. The cubic root of 864318431 is about 952.5576255370.

The spelling of 864318431 in words is "eight hundred sixty-four million, three hundred eighteen thousand, four hundred thirty-one".