86180709 has 8 divisors (see below), whose sum is σ = 115096320. Its totient is φ = 57359456.

The previous prime is 86180707. The next prime is 86180737. The reversal of 86180709 is 90708168.

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 86180709 - 2¹ = 86180707 is a prime.

It is a super-2 number, since 2×86180709² = 14854229207485362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86180707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21429 + ... + 25130.

It is an arithmetic number, because the mean of its divisors is an integer number (14387040).

Almost surely, 2^86180709 is an apocalyptic number.

It is an amenable number.

86180709 is a deficient number, since it is larger than the sum of its proper divisors (28915611).

86180709 is a wasteful number, since it uses less digits than its factorization.

86180709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47179.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 86180709 is about 9283.3565589177. The cubic root of 86180709 is about 441.7094467798.

The spelling of 86180709 in words is "eighty-six million, one hundred eighty thousand, seven hundred nine".