3943746 has 12 divisors (see below), whose sum is σ = 8544822. Its totient is φ = 1314576.

The previous prime is 3943721. The next prime is 3943757. The reversal of 3943746 is 6473493.

It can be written as a sum of positive squares in only one way, i.e., 3629025 + 314721 = 1905^2 + 561^2 .

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 self number, because there is not a number n which added to its sum of digits gives 3943746.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109531 + ... + 109566.

Almost surely, 2^3943746 is an apocalyptic number.

3943746 is an abundant number, since it is smaller than the sum of its proper divisors (4601076).

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

3943746 is a wasteful number, since it uses less digits than its factorization.

3943746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219105 (or 219102 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 3943746 is about 1985.8867037170. The cubic root of 3943746 is about 157.9924420889.

The spelling of 3943746 in words is "three million, nine hundred forty-three thousand, seven hundred forty-six".