86516513 has 2 divisors, whose sum is σ = 86516514. Its totient is φ = 86516512.

The previous prime is 86516489. The next prime is 86516527. The reversal of 86516513 is 31561568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85692049 + 824464 = 9257^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 86516513 - 2¹² = 86512417 is a prime.

It is not a weakly prime, because it can be changed into another prime (86516533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43258256 + 43258257.

It is an arithmetic number, because the mean of its divisors is an integer number (43258257).

Almost surely, 2^86516513 is an apocalyptic number.

It is an amenable number.

86516513 is a deficient number, since it is larger than the sum of its proper divisors (1).

86516513 is an equidigital number, since it uses as much as digits as its factorization.

86516513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 35.

The square root of 86516513 is about 9301.4253208850. The cubic root of 86516513 is about 442.2824116701.

The spelling of 86516513 in words is "eighty-six million, five hundred sixteen thousand, five hundred thirteen".