3966842 has 8 divisors (see below), whose sum is σ = 6491232. Its totient is φ = 1803100.

The previous prime is 3966817. The next prime is 3966857. The reversal of 3966842 is 2486693.

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 = 3966796 and 3966805.

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, 90134 + ... + 90177.

It is an arithmetic number, because the mean of its divisors is an integer number (811404).

Almost surely, 2^3966842 is an apocalyptic number.

3966842 is a deficient number, since it is larger than the sum of its proper divisors (2524390).

3966842 is a wasteful number, since it uses less digits than its factorization.

3966842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180324.

The product of its digits is 62208, while the sum is 38.

The square root of 3966842 is about 1991.6932494739. The cubic root of 3966842 is about 158.3002622219.

The spelling of 3966842 in words is "three million, nine hundred sixty-six thousand, eight hundred forty-two".