86181279 has 8 divisors (see below), whose sum is σ = 121667760. Its totient is φ = 54074496.

The previous prime is 86181269. The next prime is 86181317. The reversal of 86181279 is 97218168.

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

It is not a de Polignac number, because 86181279 - 2⁵ = 86181247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86181279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86181259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844864 + ... + 844965.

It is an arithmetic number, because the mean of its divisors is an integer number (15208470).

Almost surely, 2^86181279 is an apocalyptic number.

86181279 is a deficient number, since it is larger than the sum of its proper divisors (35486481).

86181279 is a wasteful number, since it uses less digits than its factorization.

86181279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689849.

The product of its digits is 48384, while the sum is 42.

The square root of 86181279 is about 9283.3872589696. The cubic root of 86181279 is about 441.7104206011.

The spelling of 86181279 in words is "eighty-six million, one hundred eighty-one thousand, two hundred seventy-nine".