13659738 has 16 divisors (see below), whose sum is σ = 28926720. Its totient is φ = 4285376.

The previous prime is 13659731. The next prime is 13659749. The reversal of 13659738 is 83795631.

13659738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13659738.

It is not an unprimeable number, because it can be changed into a prime (13659731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66858 + ... + 67061.

It is an arithmetic number, because the mean of its divisors is an integer number (1807920).

Almost surely, 2^13659738 is an apocalyptic number.

13659738 is an abundant number, since it is smaller than the sum of its proper divisors (15266982).

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

13659738 is a wasteful number, since it uses less digits than its factorization.

13659738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133941.

The product of its digits is 136080, while the sum is 42.

The square root of 13659738 is about 3695.9082780827. The cubic root of 13659738 is about 239.0456195779.

The spelling of 13659738 in words is "thirteen million, six hundred fifty-nine thousand, seven hundred thirty-eight".