86797687 has 2 divisors, whose sum is σ = 86797688. Its totient is φ = 86797686.

The previous prime is 86797649. The next prime is 86797691. The reversal of 86797687 is 78679768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86797687 - 2⁷ = 86797559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86797787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43398843 + 43398844.

It is an arithmetic number, because the mean of its divisors is an integer number (43398844).

Almost surely, 2^86797687 is an apocalyptic number.

86797687 is a deficient number, since it is larger than the sum of its proper divisors (1).

86797687 is an equidigital number, since it uses as much as digits as its factorization.

86797687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 58.

The square root of 86797687 is about 9316.5276256769. The cubic root of 86797687 is about 442.7610248811.

The spelling of 86797687 in words is "eighty-six million, seven hundred ninety-seven thousand, six hundred eighty-seven".