13689772 has 12 divisors (see below), whose sum is σ = 24110800. Its totient is φ = 6800976.

The previous prime is 13689749. The next prime is 13689773. The reversal of 13689772 is 27798631.

It is a happy number.

13689772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13689773) 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, 10272 + ... + 11527.

Almost surely, 2^13689772 is an apocalyptic number.

It is an amenable number.

13689772 is a deficient number, since it is larger than the sum of its proper divisors (10421028).

13689772 is a wasteful number, since it uses less digits than its factorization.

13689772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21960 (or 21958 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 13689772 is about 3699.9691890609. The cubic root of 13689772 is about 239.2206898134.

The spelling of 13689772 in words is "thirteen million, six hundred eighty-nine thousand, seven hundred seventy-two".