86397679 has 4 divisors (see below), whose sum is σ = 86452600. Its totient is φ = 86342760.

The previous prime is 86397677. The next prime is 86397691. The reversal of 86397679 is 97679368.

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

It is a cyclic number.

It is not a de Polignac number, because 86397679 - 2¹ = 86397677 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 (86397671) 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, 25029 + ... + 28270.

It is an arithmetic number, because the mean of its divisors is an integer number (21613150).

Almost surely, 2^86397679 is an apocalyptic number.

86397679 is a deficient number, since it is larger than the sum of its proper divisors (54921).

86397679 is a wasteful number, since it uses less digits than its factorization.

86397679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54920.

The product of its digits is 3429216, while the sum is 55.

The square root of 86397679 is about 9295.0351801378. The cubic root of 86397679 is about 442.0798211731.

The spelling of 86397679 in words is "eighty-six million, three hundred ninety-seven thousand, six hundred seventy-nine".