13979983 has 2 divisors, whose sum is σ = 13979984. Its totient is φ = 13979982.

The previous prime is 13979963. The next prime is 13980047. The reversal of 13979983 is 38997931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13979983 - 2⁵ = 13979951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13979923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6989991 + 6989992.

It is an arithmetic number, because the mean of its divisors is an integer number (6989992).

Almost surely, 2^13979983 is an apocalyptic number.

13979983 is a deficient number, since it is larger than the sum of its proper divisors (1).

13979983 is an equidigital number, since it uses as much as digits as its factorization.

13979983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 49.

The square root of 13979983 is about 3738.9815458223. The cubic root of 13979983 is about 240.8993053967.

The spelling of 13979983 in words is "thirteen million, nine hundred seventy-nine thousand, nine hundred eighty-three".