3666266 has 16 divisors (see below), whose sum is σ = 5702400. Its totient is φ = 1766688.

The previous prime is 3666263. The next prime is 3666281. The reversal of 3666266 is 6626663.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3666263) 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, 7415 + ... + 7893.

It is an arithmetic number, because the mean of its divisors is an integer number (356400).

Almost surely, 2^3666266 is an apocalyptic number.

3666266 is a deficient number, since it is larger than the sum of its proper divisors (2036134).

3666266 is a wasteful number, since it uses less digits than its factorization.

3666266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its digits is 46656, while the sum is 35.

The square root of 3666266 is about 1914.7495919832. The cubic root of 3666266 is about 154.1965500710.

The spelling of 3666266 in words is "three million, six hundred sixty-six thousand, two hundred sixty-six".