86122479 has 4 divisors (see below), whose sum is σ = 114829976. Its totient is φ = 57414984.

The previous prime is 86122457. The next prime is 86122483. The reversal of 86122479 is 97422168.

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

It is not a de Polignac number, because 86122479 - 2¹¹ = 86120431 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 (86122429) 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, 14353744 + ... + 14353749.

It is an arithmetic number, because the mean of its divisors is an integer number (28707494).

Almost surely, 2^86122479 is an apocalyptic number.

86122479 is a deficient number, since it is larger than the sum of its proper divisors (28707497).

86122479 is a wasteful number, since it uses less digits than its factorization.

86122479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28707496.

The product of its digits is 48384, while the sum is 39.

The square root of 86122479 is about 9280.2197711046. The cubic root of 86122479 is about 441.6099406123.

The spelling of 86122479 in words is "eighty-six million, one hundred twenty-two thousand, four hundred seventy-nine".