86708971 has 2 divisors, whose sum is σ = 86708972. Its totient is φ = 86708970.

The previous prime is 86708957. The next prime is 86709001. The reversal of 86708971 is 17980768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86708971 - 2¹⁵ = 86676203 is a prime.

It is not a weakly prime, because it can be changed into another prime (86708471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43354485 + 43354486.

It is an arithmetic number, because the mean of its divisors is an integer number (43354486).

Almost surely, 2^86708971 is an apocalyptic number.

86708971 is a deficient number, since it is larger than the sum of its proper divisors (1).

86708971 is an equidigital number, since it uses as much as digits as its factorization.

86708971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 86708971 is about 9311.7651924863. The cubic root of 86708971 is about 442.6101246334.

The spelling of 86708971 in words is "eighty-six million, seven hundred eight thousand, nine hundred seventy-one".