13979583 has 6 divisors (see below), whose sum is σ = 20192744. Its totient is φ = 9319716.

The previous prime is 13979579. The next prime is 13979597. The reversal of 13979583 is 38597931.

It is a happy number.

It is not a de Polignac number, because 13979583 - 2² = 13979579 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13979503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 776635 + ... + 776652.

Almost surely, 2^13979583 is an apocalyptic number.

13979583 is a deficient number, since it is larger than the sum of its proper divisors (6213161).

13979583 is a wasteful number, since it uses less digits than its factorization.

13979583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553293 (or 1553290 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 13979583 is about 3738.9280549377. The cubic root of 13979583 is about 240.8970078106.

The spelling of 13979583 in words is "thirteen million, nine hundred seventy-nine thousand, five hundred eighty-three".