86113987 has 2 divisors, whose sum is σ = 86113988. Its totient is φ = 86113986.

The previous prime is 86113969. The next prime is 86113991. The reversal of 86113987 is 78931168.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86113987 is a prime.

It is not a weakly prime, because it can be changed into another prime (86113957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43056993 + 43056994.

It is an arithmetic number, because the mean of its divisors is an integer number (43056994).

Almost surely, 2^86113987 is an apocalyptic number.

86113987 is a deficient number, since it is larger than the sum of its proper divisors (1).

86113987 is an equidigital number, since it uses as much as digits as its factorization.

86113987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 43.

The square root of 86113987 is about 9279.7622275573. The cubic root of 86113987 is about 441.5954253354.

The spelling of 86113987 in words is "eighty-six million, one hundred thirteen thousand, nine hundred eighty-seven".