3966838 has 8 divisors (see below), whose sum is σ = 6062688. Its totient is φ = 1945944.

The previous prime is 3966817. The next prime is 3966857. The reversal of 3966838 is 8386693.

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

It is a junction number, because it is equal to n+sod(n) for n = 3966794 and 3966803.

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, 18606 + ... + 18817.

It is an arithmetic number, because the mean of its divisors is an integer number (757836).

Almost surely, 2^3966838 is an apocalyptic number.

3966838 is a deficient number, since it is larger than the sum of its proper divisors (2095850).

3966838 is a wasteful number, since it uses less digits than its factorization.

3966838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37478.

The product of its digits is 186624, while the sum is 43.

The square root of 3966838 is about 1991.6922453030. The cubic root of 3966838 is about 158.3002090140.

The spelling of 3966838 in words is "three million, nine hundred sixty-six thousand, eight hundred thirty-eight".