13983791 has 8 divisors (see below), whose sum is σ = 14778480. Its totient is φ = 13195008.

The previous prime is 13983779. The next prime is 13983797. The reversal of 13983791 is 19738931.

13983791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13983791 - 2²² = 9789487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13983797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3935 + ... + 6591.

It is an arithmetic number, because the mean of its divisors is an integer number (1847310).

Almost surely, 2^13983791 is an apocalyptic number.

13983791 is a deficient number, since it is larger than the sum of its proper divisors (794689).

13983791 is a wasteful number, since it uses less digits than its factorization.

13983791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953.

The product of its digits is 40824, while the sum is 41.

The square root of 13983791 is about 3739.4907407293. The cubic root of 13983791 is about 240.9211762215.

The spelling of 13983791 in words is "thirteen million, nine hundred eighty-three thousand, seven hundred ninety-one".