86384979 has 12 divisors (see below), whose sum is σ = 127680696. Its totient is φ = 56250432.

The previous prime is 86384971. The next prime is 86384981. The reversal of 86384979 is 97948368.

It is not a de Polignac number, because 86384979 - 2³ = 86384971 is a prime.

It is a super-3 number, since 3×86384979³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (86384971) 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 11 ways as a sum of consecutive naturals, for example, 111222 + ... + 111995.

It is an arithmetic number, because the mean of its divisors is an integer number (10640058).

Almost surely, 2^86384979 is an apocalyptic number.

86384979 is a deficient number, since it is larger than the sum of its proper divisors (41295717).

86384979 is a wasteful number, since it uses less digits than its factorization.

86384979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223266 (or 223263 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 86384979 is about 9294.3519946256. The cubic root of 86384979 is about 442.0581589830.

The spelling of 86384979 in words is "eighty-six million, three hundred eighty-four thousand, nine hundred seventy-nine".