13268939 has 4 divisors (see below), whose sum is σ = 13277256. Its totient is φ = 13260624.

The previous prime is 13268911. The next prime is 13268971. The reversal of 13268939 is 93986231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 93986231 = 109 ⋅862259.

It is a cyclic number.

It is not a de Polignac number, because 13268939 - 2⁸ = 13268683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13268896 and 13268905.

It is not an unprimeable number, because it can be changed into a prime (13268989) 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, 929 + ... + 5234.

It is an arithmetic number, because the mean of its divisors is an integer number (3319314).

Almost surely, 2^13268939 is an apocalyptic number.

13268939 is a deficient number, since it is larger than the sum of its proper divisors (8317).

13268939 is an equidigital number, since it uses as much as digits as its factorization.

13268939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8316.

The product of its digits is 69984, while the sum is 41.

The square root of 13268939 is about 3642.6554874157. The cubic root of 13268939 is about 236.7438644766.

The spelling of 13268939 in words is "thirteen million, two hundred sixty-eight thousand, nine hundred thirty-nine".