13897756 has 6 divisors (see below), whose sum is σ = 24321080. Its totient is φ = 6948876.

The previous prime is 13897717. The next prime is 13897777. The reversal of 13897756 is 65779831.

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, 1737216 + ... + 1737223.

Almost surely, 2^13897756 is an apocalyptic number.

It is an amenable number.

13897756 is a deficient number, since it is larger than the sum of its proper divisors (10423324).

13897756 is a wasteful number, since it uses less digits than its factorization.

13897756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474443 (or 3474441 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 13897756 is about 3727.9694204754. The cubic root of 13897756 is about 240.4260718510.

The spelling of 13897756 in words is "thirteen million, eight hundred ninety-seven thousand, seven hundred fifty-six".