13647768 has 16 divisors (see below), whose sum is σ = 34119480. Its totient is φ = 4549248.

The previous prime is 13647761. The next prime is 13647779. The reversal of 13647768 is 86774631.

13647768 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 (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13647761) 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, 284305 + ... + 284352.

Almost surely, 2^13647768 is an apocalyptic number.

It is an amenable number.

13647768 is an abundant number, since it is smaller than the sum of its proper divisors (20471712).

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

13647768 is a wasteful number, since it uses less digits than its factorization.

13647768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568666 (or 568662 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 13647768 is about 3694.2885647984. The cubic root of 13647768 is about 238.9757741123.

The spelling of 13647768 in words is "thirteen million, six hundred forty-seven thousand, seven hundred sixty-eight".