13997672 has 16 divisors (see below), whose sum is σ = 28264740. Its totient is φ = 6460416.

The previous prime is 13997663. The next prime is 13997689. The reversal of 13997672 is 27679931.

It is a happy number.

13997672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12292036 + 1705636 = 3506^2 + 1306^2 .

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, 67193 + ... + 67400.

Almost surely, 2^13997672 is an apocalyptic number.

It is an amenable number.

13997672 is an abundant number, since it is smaller than the sum of its proper divisors (14267068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13997672 is a wasteful number, since it uses less digits than its factorization.

13997672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134612 (or 134608 counting only the distinct ones).

The product of its digits is 142884, while the sum is 44.

The square root of 13997672 is about 3741.3462817547. The cubic root of 13997672 is about 241.0008666027. Note that the first 3 decimals are identical.

The spelling of 13997672 in words is "thirteen million, nine hundred ninety-seven thousand, six hundred seventy-two".