13997356 has 6 divisors (see below), whose sum is σ = 24495380. Its totient is φ = 6998676.

The previous prime is 13997351. The next prime is 13997371. The reversal of 13997356 is 65379931.

It is a happy number.

13997356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13997351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1749666 + ... + 1749673.

Almost surely, 2^13997356 is an apocalyptic number.

It is an amenable number.

13997356 is a deficient number, since it is larger than the sum of its proper divisors (10498024).

13997356 is a wasteful number, since it uses less digits than its factorization.

13997356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499343 (or 3499341 counting only the distinct ones).

The product of its digits is 153090, while the sum is 43.

The square root of 13997356 is about 3741.3040507288. The cubic root of 13997356 is about 240.9990530429. Note that the first 3 decimals are identical.

The spelling of 13997356 in words is "thirteen million, nine hundred ninety-seven thousand, three hundred fifty-six".