3947706 has 96 divisors (see below), whose sum is σ = 11007360. Its totient is φ = 995328.

The previous prime is 3947693. The next prime is 3947747. The reversal of 3947706 is 6077493.

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 47 ways as a sum of consecutive naturals, for example, 40650 + ... + 40746.

It is an arithmetic number, because the mean of its divisors is an integer number (114660).

Almost surely, 2^3947706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3947706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5503680).

3947706 is an abundant number, since it is smaller than the sum of its proper divisors (7059654).

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

3947706 is a wasteful number, since it uses less digits than its factorization.

3947706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 3947706 is about 1986.8834892867. The cubic root of 3947706 is about 158.0453055997.

It can be divided in two parts, 394 and 7706, that added together give a square (8100 = 90²).

The spelling of 3947706 in words is "three million, nine hundred forty-seven thousand, seven hundred six".