86545117 has 2 divisors, whose sum is σ = 86545118. Its totient is φ = 86545116.

The previous prime is 86545103. The next prime is 86545127. The reversal of 86545117 is 71154568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46867716 + 39677401 = 6846^2 + 6299^2 .

It is a cyclic number.

It is not a de Polignac number, because 86545117 - 2²³ = 78156509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86545127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43272558 + 43272559.

It is an arithmetic number, because the mean of its divisors is an integer number (43272559).

Almost surely, 2^86545117 is an apocalyptic number.

It is an amenable number.

86545117 is a deficient number, since it is larger than the sum of its proper divisors (1).

86545117 is an equidigital number, since it uses as much as digits as its factorization.

86545117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 37.

The square root of 86545117 is about 9302.9628076221. The cubic root of 86545117 is about 442.3311486171.

The spelling of 86545117 in words is "eighty-six million, five hundred forty-five thousand, one hundred seventeen".