13887344 has 10 divisors (see below), whose sum is σ = 26906760. Its totient is φ = 6943664.

The previous prime is 13887343. The next prime is 13887359. The reversal of 13887344 is 44378831.

It is a junction number, because it is equal to n+sod(n) for n = 13887298 and 13887307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13887343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433964 + ... + 433995.

It is an arithmetic number, because the mean of its divisors is an integer number (2690676).

Almost surely, 2^13887344 is an apocalyptic number.

It is an amenable number.

13887344 is a deficient number, since it is larger than the sum of its proper divisors (13019416).

13887344 is an equidigital number, since it uses as much as digits as its factorization.

13887344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867967 (or 867961 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 13887344 is about 3726.5726881412. The cubic root of 13887344 is about 240.3660155928.

The spelling of 13887344 in words is "thirteen million, eight hundred eighty-seven thousand, three hundred forty-four".