86955871 has 2 divisors, whose sum is σ = 86955872. Its totient is φ = 86955870.

The previous prime is 86955859. The next prime is 86955887. The reversal of 86955871 is 17855968.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86955871 is a prime.

It is a super-2 number, since 2×86955871² = 15122647002737282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86955811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43477935 + 43477936.

It is an arithmetic number, because the mean of its divisors is an integer number (43477936).

Almost surely, 2^86955871 is an apocalyptic number.

86955871 is a deficient number, since it is larger than the sum of its proper divisors (1).

86955871 is an equidigital number, since it uses as much as digits as its factorization.

86955871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 49.

The square root of 86955871 is about 9325.0131903392. The cubic root of 86955871 is about 443.0298308396.

The spelling of 86955871 in words is "eighty-six million, nine hundred fifty-five thousand, eight hundred seventy-one".