3994166 has 8 divisors (see below), whose sum is σ = 6535944. Its totient is φ = 1815520.

The previous prime is 3994147. The next prime is 3994171. The reversal of 3994166 is 6614993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90755 + ... + 90798.

It is an arithmetic number, because the mean of its divisors is an integer number (816993).

Almost surely, 2^3994166 is an apocalyptic number.

3994166 is a deficient number, since it is larger than the sum of its proper divisors (2541778).

3994166 is a wasteful number, since it uses less digits than its factorization.

3994166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181566.

The product of its digits is 34992, while the sum is 38.

The square root of 3994166 is about 1998.5409678063. The cubic root of 3994166 is about 158.6628934991.

The spelling of 3994166 in words is "three million, nine hundred ninety-four thousand, one hundred sixty-six".