86500871 has 2 divisors, whose sum is σ = 86500872. Its totient is φ = 86500870.

The previous prime is 86500859. The next prime is 86500889. The reversal of 86500871 is 17800568.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86500871 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86505871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43250435 + 43250436.

It is an arithmetic number, because the mean of its divisors is an integer number (43250436).

Almost surely, 2^86500871 is an apocalyptic number.

86500871 is a deficient number, since it is larger than the sum of its proper divisors (1).

86500871 is an equidigital number, since it uses as much as digits as its factorization.

86500871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 86500871 is about 9300.5844440014. The cubic root of 86500871 is about 442.2557554931.

The spelling of 86500871 in words is "eighty-six million, five hundred thousand, eight hundred seventy-one".