13793939 has 4 divisors (see below), whose sum is σ = 14054256. Its totient is φ = 13533624.

The previous prime is 13793929. The next prime is 13793947. The reversal of 13793939 is 93939731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93939731 = 5077 ⋅18503.

It is a cyclic number.

It is not a de Polignac number, because 13793939 - 2⁸ = 13793683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13793939.

It is not an unprimeable number, because it can be changed into a prime (13793909) 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 in 3 ways as a sum of consecutive naturals, for example, 130079 + ... + 130184.

It is an arithmetic number, because the mean of its divisors is an integer number (3513564).

Almost surely, 2^13793939 is an apocalyptic number.

13793939 is a deficient number, since it is larger than the sum of its proper divisors (260317).

13793939 is an equidigital number, since it uses as much as digits as its factorization.

13793939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260316.

The product of its digits is 137781, while the sum is 44.

The square root of 13793939 is about 3714.0192514310. The cubic root of 13793939 is about 239.8259096291.

The spelling of 13793939 in words is "thirteen million, seven hundred ninety-three thousand, nine hundred thirty-nine".