13826666 has 16 divisors (see below), whose sum is σ = 23787456. Its totient is φ = 5904576.

The previous prime is 13826663. The next prime is 13826677. The reversal of 13826666 is 66662831.

13826666 is a modest number, since divided by 6666 gives 1382 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13826663) 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, 2690 + ... + 5906.

It is an arithmetic number, because the mean of its divisors is an integer number (1486716).

Almost surely, 2^13826666 is an apocalyptic number.

13826666 is a deficient number, since it is larger than the sum of its proper divisors (9960790).

13826666 is a wasteful number, since it uses less digits than its factorization.

13826666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533.

The product of its digits is 62208, while the sum is 38.

The square root of 13826666 is about 3718.4225149921. The cubic root of 13826666 is about 240.0154272491.

The spelling of 13826666 in words is "thirteen million, eight hundred twenty-six thousand, six hundred sixty-six".