86179549 has 8 divisors (see below), whose sum is σ = 88647768. Its totient is φ = 83718720.

The previous prime is 86179531. The next prime is 86179559. The reversal of 86179549 is 94597168.

It can be written as a sum of positive squares in 4 ways, for example, as 3496900 + 82682649 = 1870^2 + 9093^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86179549 - 2⁵ = 86179517 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 (86179559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28959 + ... + 31795.

It is an arithmetic number, because the mean of its divisors is an integer number (11080971).

Almost surely, 2^86179549 is an apocalyptic number.

It is an amenable number.

86179549 is a deficient number, since it is larger than the sum of its proper divisors (2468219).

86179549 is a wasteful number, since it uses less digits than its factorization.

86179549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695.

The product of its digits is 544320, while the sum is 49.

The square root of 86179549 is about 9283.2940813054. The cubic root of 86179549 is about 441.7074649548.

The spelling of 86179549 in words is "eighty-six million, one hundred seventy-nine thousand, five hundred forty-nine".