13407939 has 24 divisors (see below), whose sum is σ = 20638800. Its totient is φ = 8363520.

The previous prime is 13407913. The next prime is 13407941. The reversal of 13407939 is 93970431.

13407939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13407939 - 2⁵ = 13407907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13407439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14779 + ... + 15659.

It is an arithmetic number, because the mean of its divisors is an integer number (859950).

Almost surely, 2^13407939 is an apocalyptic number.

13407939 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13407939 is a deficient number, since it is larger than the sum of its proper divisors (7230861).

13407939 is a wasteful number, since it uses less digits than its factorization.

13407939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 13407939 is about 3661.6852677422. The cubic root of 13407939 is about 237.5676719442.

The spelling of 13407939 in words is "thirteen million, four hundred seven thousand, nine hundred thirty-nine".