83886979 has 8 divisors (see below), whose sum is σ = 91672560. Its totient is φ = 76128000.

The previous prime is 83886973. The next prime is 83886983. The reversal of 83886979 is 97968838.

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 83886979 - 2⁵ = 83886947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83886973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267 + ... + 12955.

It is an arithmetic number, because the mean of its divisors is an integer number (11459070).

Almost surely, 2^83886979 is an apocalyptic number.

83886979 is a deficient number, since it is larger than the sum of its proper divisors (7785581).

83886979 is a wasteful number, since it uses less digits than its factorization.

83886979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13301.

The product of its digits is 5225472, while the sum is 58.

The square root of 83886979 is about 9158.9835134692. The cubic root of 83886979 is about 437.7554061339.

The spelling of 83886979 in words is "eighty-three million, eight hundred eighty-six thousand, nine hundred seventy-nine".