86190979 has 8 divisors (see below), whose sum is σ = 100906848. Its totient is φ = 72075840.

The previous prime is 86190967. The next prime is 86190989. The reversal of 86190979 is 97909168.

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 86190979 - 2¹⁵ = 86158211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86190919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149872 + ... + 150445.

It is an arithmetic number, because the mean of its divisors is an integer number (12613356).

Almost surely, 2^86190979 is an apocalyptic number.

86190979 is a deficient number, since it is larger than the sum of its proper divisors (14715869).

86190979 is a wasteful number, since it uses less digits than its factorization.

86190979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300365.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 86190979 is about 9283.9096828868. The cubic root of 86190979 is about 441.7269919895.

The spelling of 86190979 in words is "eighty-six million, one hundred ninety thousand, nine hundred seventy-nine".