86779679 has 16 divisors (see below), whose sum is σ = 106500096. Its totient is φ = 69014400.

The previous prime is 86779661. The next prime is 86779691. The reversal of 86779679 is 97697768.

It is not a de Polignac number, because 86779679 - 2⁸ = 86779423 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 (86779639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3314 + ... + 13584.

It is an arithmetic number, because the mean of its divisors is an integer number (6656256).

Almost surely, 2^86779679 is an apocalyptic number.

86779679 is a deficient number, since it is larger than the sum of its proper divisors (19720417).

86779679 is a wasteful number, since it uses less digits than its factorization.

86779679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10366.

The product of its digits is 8001504, while the sum is 59.

The square root of 86779679 is about 9315.5611210490. The cubic root of 86779679 is about 442.7304027440.

The spelling of 86779679 in words is "eighty-six million, seven hundred seventy-nine thousand, six hundred seventy-nine".