13987448 has 16 divisors (see below), whose sum is σ = 27072960. Its totient is φ = 6768000.

The previous prime is 13987423. The next prime is 13987453. The reversal of 13987448 is 84478931.

It is a junction number, because it is equal to n+sod(n) for n = 13987399 and 13987408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27953 + ... + 28448.

It is an arithmetic number, because the mean of its divisors is an integer number (1692060).

Almost surely, 2^13987448 is an apocalyptic number.

It is an amenable number.

13987448 is a deficient number, since it is larger than the sum of its proper divisors (13085512).

13987448 is a wasteful number, since it uses less digits than its factorization.

13987448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56438 (or 56434 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 13987448 is about 3739.9796790892. The cubic root of 13987448 is about 240.9421760574.

The spelling of 13987448 in words is "thirteen million, nine hundred eighty-seven thousand, four hundred forty-eight".