86810887 has 2 divisors, whose sum is σ = 86810888. Its totient is φ = 86810886.

The previous prime is 86810879. The next prime is 86810897. The reversal of 86810887 is 78801868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86810887 - 2³ = 86810879 is a prime.

It is a super-2 number, since 2×86810887² = 15072260203453538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86810897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43405443 + 43405444.

It is an arithmetic number, because the mean of its divisors is an integer number (43405444).

Almost surely, 2^86810887 is an apocalyptic number.

86810887 is a deficient number, since it is larger than the sum of its proper divisors (1).

86810887 is an equidigital number, since it uses as much as digits as its factorization.

86810887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172032, while the sum is 46.

The square root of 86810887 is about 9317.2360171888. The cubic root of 86810887 is about 442.7834684487.

The spelling of 86810887 in words is "eighty-six million, eight hundred ten thousand, eight hundred eighty-seven".