13973844 has 24 divisors (see below), whose sum is σ = 32733568. Its totient is φ = 4639680.

The previous prime is 13973837. The next prime is 13973887. The reversal of 13973844 is 44837931.

13973844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13973844² = 390536632272672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 1104 + ... + 5400.

Almost surely, 2^13973844 is an apocalyptic number.

It is an amenable number.

13973844 is an abundant number, since it is smaller than the sum of its proper divisors (18759724).

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

13973844 is a wasteful number, since it uses less digits than its factorization.

13973844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575 (or 4573 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 13973844 is about 3738.1605101975. The cubic root of 13973844 is about 240.8640383685.

The spelling of 13973844 in words is "thirteen million, nine hundred seventy-three thousand, eight hundred forty-four".