86514217 has 2 divisors, whose sum is σ = 86514218. Its totient is φ = 86514216.

The previous prime is 86514209. The next prime is 86514257. The reversal of 86514217 is 71241568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64947481 + 21566736 = 8059^2 + 4644^2 .

It is a cyclic number.

It is not a de Polignac number, because 86514217 - 2³ = 86514209 is a prime.

It is not a weakly prime, because it can be changed into another prime (86514257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43257108 + 43257109.

It is an arithmetic number, because the mean of its divisors is an integer number (43257109).

Almost surely, 2^86514217 is an apocalyptic number.

It is an amenable number.

86514217 is a deficient number, since it is larger than the sum of its proper divisors (1).

86514217 is an equidigital number, since it uses as much as digits as its factorization.

86514217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 86514217 is about 9301.3018981216. The cubic root of 86514217 is about 442.2784991631.

The spelling of 86514217 in words is "eighty-six million, five hundred fourteen thousand, two hundred seventeen".