13897948 has 12 divisors (see below), whose sum is σ = 24347512. Its totient is φ = 6941520.

The previous prime is 13897943. The next prime is 13897997. The reversal of 13897948 is 84979831.

It is a happy number.

It is a super-2 number, since 2×13897948² = 386305917221408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13897943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6511 + ... + 8377.

Almost surely, 2^13897948 is an apocalyptic number.

It is an amenable number.

13897948 is a deficient number, since it is larger than the sum of its proper divisors (10449564).

13897948 is a wasteful number, since it uses less digits than its factorization.

13897948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732 (or 3730 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 13897948 is about 3727.9951716707. The cubic root of 13897948 is about 240.4271790224.

The spelling of 13897948 in words is "thirteen million, eight hundred ninety-seven thousand, nine hundred forty-eight".