86115959 has 2 divisors, whose sum is σ = 86115960. Its totient is φ = 86115958.

The previous prime is 86115943. The next prime is 86115973. The reversal of 86115959 is 95951168.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86115959 - 2⁴ = 86115943 is a prime.

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 (86115259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43057979 + 43057980.

It is an arithmetic number, because the mean of its divisors is an integer number (43057980).

Almost surely, 2^86115959 is an apocalyptic number.

86115959 is a deficient number, since it is larger than the sum of its proper divisors (1).

86115959 is an equidigital number, since it uses as much as digits as its factorization.

86115959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 44.

The square root of 86115959 is about 9279.8684796715. The cubic root of 86115959 is about 441.5987961371.

The spelling of 86115959 in words is "eighty-six million, one hundred fifteen thousand, nine hundred fifty-nine".