86613813 has 32 divisors (see below), whose sum is σ = 150756480. Its totient is φ = 48453120.

The previous prime is 86613803. The next prime is 86613817. The reversal of 86613813 is 31831668.

It is not a de Polignac number, because 86613813 - 2⁴ = 86613797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86613817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7356 + ... + 15077.

It is an arithmetic number, because the mean of its divisors is an integer number (4711140).

Almost surely, 2^86613813 is an apocalyptic number.

It is an amenable number.

86613813 is a deficient number, since it is larger than the sum of its proper divisors (64142667).

86613813 is a wasteful number, since it uses less digits than its factorization.

86613813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22466 (or 22460 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 86613813 is about 9306.6542323222. The cubic root of 86613813 is about 442.4481525004.

The spelling of 86613813 in words is "eighty-six million, six hundred thirteen thousand, eight hundred thirteen".