86491013 has 8 divisors (see below), whose sum is σ = 99011520. Its totient is φ = 74011680.

The previous prime is 86491007. The next prime is 86491033. The reversal of 86491013 is 31019468.

It is a happy number.

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 86491013 - 2⁴ = 86490997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86491003) 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, 5648 + ... + 14313.

It is an arithmetic number, because the mean of its divisors is an integer number (12376440).

Almost surely, 2^86491013 is an apocalyptic number.

It is an amenable number.

86491013 is a deficient number, since it is larger than the sum of its proper divisors (12520507).

86491013 is a wasteful number, since it uses less digits than its factorization.

86491013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20587.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 86491013 is about 9300.0544622061. The cubic root of 86491013 is about 442.2389544181.

The spelling of 86491013 in words is "eighty-six million, four hundred ninety-one thousand, thirteen".