86791013 has 4 divisors (see below), whose sum is σ = 87343980. Its totient is φ = 86238048.

The previous prime is 86790989. The next prime is 86791073. The reversal of 86791013 is 31019768.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11847364 + 74943649 = 3442^2 + 8657^2 .

It is a cyclic number.

It is not a de Polignac number, because 86791013 - 2⁸ = 86790757 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 (86791073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276248 + ... + 276561.

It is an arithmetic number, because the mean of its divisors is an integer number (21835995).

Almost surely, 2^86791013 is an apocalyptic number.

It is an amenable number.

86791013 is a deficient number, since it is larger than the sum of its proper divisors (552967).

86791013 is a wasteful number, since it uses less digits than its factorization.

86791013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552966.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 86791013 is about 9316.1694381328. The cubic root of 86791013 is about 442.7496764111.

The spelling of 86791013 in words is "eighty-six million, seven hundred ninety-one thousand, thirteen".