13891382 has 16 divisors (see below), whose sum is σ = 21228480. Its totient is φ = 6816648.

The previous prime is 13891357. The next prime is 13891399. The reversal of 13891382 is 28319831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29513 + ... + 29979.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^13891382 is an apocalyptic number.

13891382 is a deficient number, since it is larger than the sum of its proper divisors (7337098).

13891382 is a wasteful number, since it uses less digits than its factorization.

13891382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

The product of its digits is 10368, while the sum is 35.

The square root of 13891382 is about 3727.1144334458. The cubic root of 13891382 is about 240.3893102778.

The spelling of 13891382 in words is "thirteen million, eight hundred ninety-one thousand, three hundred eighty-two".