3944186 has 4 divisors (see below), whose sum is σ = 5916282. Its totient is φ = 1972092.

The previous prime is 3944183. The next prime is 3944189. The reversal of 3944186 is 6814493.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3944183) and next prime (3944189).

It can be written as a sum of positive squares in only one way, i.e., 2343961 + 1600225 = 1531^2 + 1265^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3944183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986045 + ... + 986048.

Almost surely, 2^3944186 is an apocalyptic number.

3944186 is a deficient number, since it is larger than the sum of its proper divisors (1972096).

3944186 is a wasteful number, since it uses less digits than its factorization.

3944186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972095.

The product of its digits is 20736, while the sum is 35.

The square root of 3944186 is about 1985.9974823750. The cubic root of 3944186 is about 157.9983175594.

The spelling of 3944186 in words is "three million, nine hundred forty-four thousand, one hundred eighty-six".