13391672 has 16 divisors (see below), whose sum is σ = 28696560. Its totient is φ = 5739264.

The previous prime is 13391641. The next prime is 13391683. The reversal of 13391672 is 27619331.

It is a happy number.

13391672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119513 + ... + 119624.

It is an arithmetic number, because the mean of its divisors is an integer number (1793535).

Almost surely, 2^13391672 is an apocalyptic number.

It is an amenable number.

13391672 is an abundant number, since it is smaller than the sum of its proper divisors (15304888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13391672 is a wasteful number, since it uses less digits than its factorization.

13391672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239150 (or 239146 counting only the distinct ones).

The product of its digits is 6804, while the sum is 32.

The square root of 13391672 is about 3659.4633486346. The cubic root of 13391672 is about 237.4715578128.

The spelling of 13391672 in words is "thirteen million, three hundred ninety-one thousand, six hundred seventy-two".