86507513 has 6 divisors (see below), whose sum is σ = 91300554. Its totient is φ = 81954144.

The previous prime is 86507507. The next prime is 86507527. The reversal of 86507513 is 31570568.

It can be written as a sum of positive squares in only one way, i.e., 59799289 + 26708224 = 7733^2 + 5168^2 .

It is not a de Polignac number, because 86507513 - 2¹⁴ = 86491129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86507593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119456 + ... + 120177.

It is an arithmetic number, because the mean of its divisors is an integer number (15216759).

Almost surely, 2^86507513 is an apocalyptic number.

It is an amenable number.

86507513 is a deficient number, since it is larger than the sum of its proper divisors (4793041).

86507513 is a wasteful number, since it uses less digits than its factorization.

86507513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239671 (or 239652 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 86507513 is about 9300.9415114815. The cubic root of 86507513 is about 442.2670747916.

The spelling of 86507513 in words is "eighty-six million, five hundred seven thousand, five hundred thirteen".