3946806 has 28 divisors (see below), whose sum is σ = 8879532. Its totient is φ = 1315116.

The previous prime is 3946801. The next prime is 3946829. The reversal of 3946806 is 6086493.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946801) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 105 + ... + 2811.

Almost surely, 2^3946806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3946806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4439766).

3946806 is an abundant number, since it is smaller than the sum of its proper divisors (4932726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3946806 is an equidigital number, since it uses as much as digits as its factorization.

3946806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727 (or 2712 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3946806 is about 1986.6569910279. The cubic root of 3946806 is about 158.0332942708.

The spelling of 3946806 in words is "three million, nine hundred forty-six thousand, eight hundred six".