3966814 has 12 divisors (see below), whose sum is σ = 6321744. Its totient is φ = 1866464.

The previous prime is 3966803. The next prime is 3966817. The reversal of 3966814 is 4186693.

It is a super-2 number, since 2×3966814² = 31471226621192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966817) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2854 + ... + 4009.

It is an arithmetic number, because the mean of its divisors is an integer number (526812).

Almost surely, 2^3966814 is an apocalyptic number.

3966814 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3966814 is a deficient number, since it is larger than the sum of its proper divisors (2354930).

3966814 is a wasteful number, since it uses less digits than its factorization.

3966814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899 (or 6882 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 3966814 is about 1991.6862202666. The cubic root of 3966814 is about 158.2998897663.

The spelling of 3966814 in words is "three million, nine hundred sixty-six thousand, eight hundred fourteen".