86068979 has 4 divisors (see below), whose sum is σ = 87692976. Its totient is φ = 84444984.

The previous prime is 86068951. The next prime is 86068991. The reversal of 86068979 is 97986068.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86068979 is a prime.

It is a super-2 number, since 2×86068979² = 14815738292204882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 1623943 = 86068979 / (8 + 6 + 0 + 6 + 8 + 9 + 7 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86068979.

It is not an unprimeable number, because it can be changed into a prime (86068949) 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, 811919 + ... + 812024.

It is an arithmetic number, because the mean of its divisors is an integer number (21923244).

Almost surely, 2^86068979 is an apocalyptic number.

86068979 is a deficient number, since it is larger than the sum of its proper divisors (1623997).

86068979 is a wasteful number, since it uses less digits than its factorization.

86068979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623996.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 86068979 is about 9277.3368484711. The cubic root of 86068979 is about 441.5184777482.

The spelling of 86068979 in words is "eighty-six million, sixty-eight thousand, nine hundred seventy-nine".