83960979 has 16 divisors (see below), whose sum is σ = 113923584. Its totient is φ = 54992000.

The previous prime is 83960959. The next prime is 83960993. The reversal of 83960979 is 97906938.

It is a cyclic number.

It is not a de Polignac number, because 83960979 - 2¹² = 83956883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83960959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84922 + ... + 85904.

It is an arithmetic number, because the mean of its divisors is an integer number (7120224).

Almost surely, 2^83960979 is an apocalyptic number.

83960979 is a deficient number, since it is larger than the sum of its proper divisors (29962605).

83960979 is a wasteful number, since it uses less digits than its factorization.

83960979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 83960979 is about 9163.0223725581. The cubic root of 83960979 is about 437.8840887169.

The spelling of 83960979 in words is "eighty-three million, nine hundred sixty thousand, nine hundred seventy-nine".