13887488 has 24 divisors (see below), whose sum is σ = 27772290. Its totient is φ = 6942720.

The previous prime is 13887481. The next prime is 13887493. The reversal of 13887488 is 88478831.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12166144 + 1721344 = 3488^2 + 1312^2 .

It is not an unprimeable number, because it can be changed into a prime (13887481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343 + ... + 5438.

Almost surely, 2^13887488 is an apocalyptic number.

It is an amenable number.

13887488 is a deficient number, since it is larger than the sum of its proper divisors (13884802).

13887488 is an frugal number, since it uses more digits than its factorization.

13887488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6803 (or 6783 counting only the distinct ones).

The product of its digits is 344064, while the sum is 47.

The square root of 13887488 is about 3726.5920087930. The cubic root of 13887488 is about 240.3668463872.

The spelling of 13887488 in words is "thirteen million, eight hundred eighty-seven thousand, four hundred eighty-eight".