13363979 has 4 divisors (see below), whose sum is σ = 13488984. Its totient is φ = 13238976.

The previous prime is 13363969. The next prime is 13364009. The reversal of 13363979 is 97936331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13363979 - 2⁴ = 13363963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13363969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62342 + ... + 62555.

It is an arithmetic number, because the mean of its divisors is an integer number (3372246).

Almost surely, 2^13363979 is an apocalyptic number.

13363979 is a deficient number, since it is larger than the sum of its proper divisors (125005).

13363979 is a wasteful number, since it uses less digits than its factorization.

13363979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125004.

The product of its digits is 91854, while the sum is 41.

The square root of 13363979 is about 3655.6776389611. The cubic root of 13363979 is about 237.3077535677.

The spelling of 13363979 in words is "thirteen million, three hundred sixty-three thousand, nine hundred seventy-nine".