13743666 has 24 divisors (see below), whose sum is σ = 30268524. Its totient is φ = 4505760.

The previous prime is 13743661. The next prime is 13743731. The reversal of 13743666 is 66634731.

It is a happy number.

13743666 is digitally balanced in base 2 and base 4, because in such bases 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 13727025 + 16641 = 3705^2 + 129^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13743666.

It is not an unprimeable number, because it can be changed into a prime (13743661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5161 + ... + 7356.

Almost surely, 2^13743666 is an apocalyptic number.

13743666 is an abundant number, since it is smaller than the sum of its proper divisors (16524858).

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

13743666 is a wasteful number, since it uses less digits than its factorization.

13743666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12586 (or 12583 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 13743666 is about 3707.2450687809. The cubic root of 13743666 is about 239.5342007141.

The spelling of 13743666 in words is "thirteen million, seven hundred forty-three thousand, six hundred sixty-six".