86500537 has 2 divisors, whose sum is σ = 86500538. Its totient is φ = 86500536.

The previous prime is 86500481. The next prime is 86500543. The reversal of 86500537 is 73500568.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66928761 + 19571776 = 8181^2 + 4424^2 .

It is a cyclic number.

It is not a de Polignac number, because 86500537 - 2⁷ = 86500409 is a prime.

It is not a weakly prime, because it can be changed into another prime (86500577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43250268 + 43250269.

It is an arithmetic number, because the mean of its divisors is an integer number (43250269).

Almost surely, 2^86500537 is an apocalyptic number.

It is an amenable number.

86500537 is a deficient number, since it is larger than the sum of its proper divisors (1).

86500537 is an equidigital number, since it uses as much as digits as its factorization.

86500537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 86500537 is about 9300.5664881232. The cubic root of 86500537 is about 442.2551862749.

The spelling of 86500537 in words is "eighty-six million, five hundred thousand, five hundred thirty-seven".