86663513 has 8 divisors (see below), whose sum is σ = 89759880. Its totient is φ = 83574400.

The previous prime is 86663477. The next prime is 86663519. The reversal of 86663513 is 31536668.

It can be written as a sum of positive squares in 4 ways, for example, as 24649 + 86638864 = 157^2 + 9308^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86663513 - 2⁶ = 86663449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86663519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36581 + ... + 38877.

It is an arithmetic number, because the mean of its divisors is an integer number (11219985).

Almost surely, 2^86663513 is an apocalyptic number.

It is an amenable number.

86663513 is a deficient number, since it is larger than the sum of its proper divisors (3096367).

86663513 is a wasteful number, since it uses less digits than its factorization.

86663513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627.

The product of its digits is 77760, while the sum is 38.

The square root of 86663513 is about 9309.3239819012. The cubic root of 86663513 is about 442.5327635949.

The spelling of 86663513 in words is "eighty-six million, six hundred sixty-three thousand, five hundred thirteen".