13746666 has 16 divisors (see below), whose sum is σ = 27617184. Its totient is φ = 4561584.

The previous prime is 13746653. The next prime is 13746731. The reversal of 13746666 is 66664731.

It is a happy number.

13746666 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 is a super-2 number, since 2×13746666² = 377941652231112, which contains 22 as substring.

13746666 is a modest number, since divided by 6666 gives 1374 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3685 + ... + 6408.

It is an arithmetic number, because the mean of its divisors is an integer number (1726074).

Almost surely, 2^13746666 is an apocalyptic number.

13746666 is an abundant number, since it is smaller than the sum of its proper divisors (13870518).

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

13746666 is a wasteful number, since it uses less digits than its factorization.

13746666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10325.

The product of its digits is 108864, while the sum is 39.

The square root of 13746666 is about 3707.6496598249. The cubic root of 13746666 is about 239.5516281439.

The spelling of 13746666 in words is "thirteen million, seven hundred forty-six thousand, six hundred sixty-six".