3666956 has 12 divisors (see below), whose sum is σ = 6431880. Its totient is φ = 1829280.

The previous prime is 3666947. The next prime is 3666961. The reversal of 3666956 is 6596663.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736 + ... + 3216.

It is an arithmetic number, because the mean of its divisors is an integer number (535990).

Almost surely, 2^3666956 is an apocalyptic number.

It is an amenable number.

3666956 is a deficient number, since it is larger than the sum of its proper divisors (2764924).

3666956 is a wasteful number, since it uses less digits than its factorization.

3666956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104 (or 2102 counting only the distinct ones).

The product of its digits is 174960, while the sum is 41.

The square root of 3666956 is about 1914.9297637250. The cubic root of 3666956 is about 154.2062228503.

It can be divided in two parts, 366 and 6956, that multiplied together give a triangular number (2545896 = T₂₂₅₆).

The spelling of 3666956 in words is "three million, six hundred sixty-six thousand, nine hundred fifty-six".