86841679 has 4 divisors (see below), whose sum is σ = 87162400. Its totient is φ = 86520960.

The previous prime is 86841659. The next prime is 86841707. The reversal of 86841679 is 97614868.

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 86841679 - 2¹¹ = 86839631 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 (86841659) 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, 159954 + ... + 160495.

It is an arithmetic number, because the mean of its divisors is an integer number (21790600).

Almost surely, 2^86841679 is an apocalyptic number.

86841679 is a deficient number, since it is larger than the sum of its proper divisors (320721).

86841679 is a wasteful number, since it uses less digits than its factorization.

86841679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320720.

The product of its digits is 580608, while the sum is 49.

The square root of 86841679 is about 9318.8882920657. Note that the first 3 decimals coincide. The cubic root of 86841679 is about 442.8358143288.

The spelling of 86841679 in words is "eighty-six million, eight hundred forty-one thousand, six hundred seventy-nine".