86985013 has 4 divisors (see below), whose sum is σ = 87081408. Its totient is φ = 86888620.

The previous prime is 86984993. The next prime is 86985023. The reversal of 86985013 is 31058968.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86985013 - 2⁵ = 86984981 is a prime.

It is a super-2 number, since 2×86985013² = 15132784973220338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86985023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46831 + ... + 48652.

It is an arithmetic number, because the mean of its divisors is an integer number (21770352).

Almost surely, 2^86985013 is an apocalyptic number.

It is an amenable number.

86985013 is a deficient number, since it is larger than the sum of its proper divisors (96395).

86985013 is an equidigital number, since it uses as much as digits as its factorization.

86985013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96394.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 86985013 is about 9326.5756309591. The cubic root of 86985013 is about 443.0793169876.

The spelling of 86985013 in words is "eighty-six million, nine hundred eighty-five thousand, thirteen".