86500577 has 2 divisors, whose sum is σ = 86500578. Its totient is φ = 86500576.

The previous prime is 86500543. The next prime is 86500621. The reversal of 86500577 is 77500568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73547776 + 12952801 = 8576^2 + 3599^2 .

It is a cyclic number.

It is not a de Polignac number, because 86500577 - 2²⁴ = 69723361 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86500577.

It is not a weakly prime, because it can be changed into another prime (86500537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43250288 + 43250289.

It is an arithmetic number, because the mean of its divisors is an integer number (43250289).

Almost surely, 2^86500577 is an apocalyptic number.

It is an amenable number.

86500577 is a deficient number, since it is larger than the sum of its proper divisors (1).

86500577 is an equidigital number, since it uses as much as digits as its factorization.

86500577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 86500577 is about 9300.5686385296. The cubic root of 86500577 is about 442.2552544448.

Subtracting from 86500577 its reverse (77500568), we obtain a palindrome (9000009).

The spelling of 86500577 in words is "eighty-six million, five hundred thousand, five hundred seventy-seven".