83979105 has 16 divisors (see below), whose sum is σ = 153561984. Its totient is φ = 38390400.

The previous prime is 83979097. The next prime is 83979121. The reversal of 83979105 is 50197938.

It is a happy number.

It is not a de Polignac number, because 83979105 - 2³ = 83979097 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 399796 + ... + 400005.

It is an arithmetic number, because the mean of its divisors is an integer number (9597624).

Almost surely, 2^83979105 is an apocalyptic number.

It is an amenable number.

83979105 is a deficient number, since it is larger than the sum of its proper divisors (69582879).

83979105 is a wasteful number, since it uses less digits than its factorization.

83979105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799816.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 83979105 is about 9164.0114033102. The cubic root of 83979105 is about 437.9155974645.

The spelling of 83979105 in words is "eighty-three million, nine hundred seventy-nine thousand, one hundred five".