86298631 has 2 divisors, whose sum is σ = 86298632. Its totient is φ = 86298630.

The previous prime is 86298617. The next prime is 86298649. The reversal of 86298631 is 13689268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86298631 - 2¹⁵ = 86265863 is a prime.

It is a super-2 number, since 2×86298631² = 14894907424948322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86298601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43149315 + 43149316.

It is an arithmetic number, because the mean of its divisors is an integer number (43149316).

Almost surely, 2^86298631 is an apocalyptic number.

86298631 is a deficient number, since it is larger than the sum of its proper divisors (1).

86298631 is an equidigital number, since it uses as much as digits as its factorization.

86298631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 86298631 is about 9289.7056465746. The cubic root of 86298631 is about 441.9108202381.

The spelling of 86298631 in words is "eighty-six million, two hundred ninety-eight thousand, six hundred thirty-one".