13847872 has 14 divisors (see below), whose sum is σ = 27479498. Its totient is φ = 6923904.

The previous prime is 13847861. The next prime is 13847887. The reversal of 13847872 is 27874831.

It can be written as a sum of positive squares in only one way, i.e., 8202496 + 5645376 = 2864^2 + 2376^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108123 + ... + 108250.

Almost surely, 2^13847872 is an apocalyptic number.

It is an amenable number.

13847872 is a deficient number, since it is larger than the sum of its proper divisors (13631626).

13847872 is an equidigital number, since it uses as much as digits as its factorization.

13847872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216385 (or 216375 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 13847872 is about 3721.2729005006. The cubic root of 13847872 is about 240.1380687039.

The spelling of 13847872 in words is "thirteen million, eight hundred forty-seven thousand, eight hundred seventy-two".