3966823 has 8 divisors (see below), whose sum is σ = 4690080. Its totient is φ = 3282720.

The previous prime is 3966817. The next prime is 3966857. The reversal of 3966823 is 3286693.

It is a happy number.

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

It is not a de Polignac number, because 3966823 - 2¹⁷ = 3835751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966803) 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 7 ways as a sum of consecutive naturals, for example, 9568 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (586260).

Almost surely, 2^3966823 is an apocalyptic number.

3966823 is a deficient number, since it is larger than the sum of its proper divisors (723257).

3966823 is a wasteful number, since it uses less digits than its factorization.

3966823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19577.

The product of its digits is 46656, while the sum is 37.

The square root of 3966823 is about 1991.6884796574. The cubic root of 3966823 is about 158.3000094843.

The spelling of 3966823 in words is "three million, nine hundred sixty-six thousand, eight hundred twenty-three".