3973166 has 12 divisors (see below), whose sum is σ = 6291072. Its totient is φ = 1881684.

The previous prime is 3973163. The next prime is 3973183. The reversal of 3973166 is 6613793.

It is a Smith number, since the sum of its digits (35) 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 (3973163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2030 + ... + 3473.

It is an arithmetic number, because the mean of its divisors is an integer number (524256).

Almost surely, 2^3973166 is an apocalyptic number.

3973166 is a deficient number, since it is larger than the sum of its proper divisors (2317906).

3973166 is a wasteful number, since it uses less digits than its factorization.

3973166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543 (or 5524 counting only the distinct ones).

The product of its digits is 20412, while the sum is 35.

The square root of 3973166 is about 1993.2802111093. The cubic root of 3973166 is about 158.3843391227.

The spelling of 3973166 in words is "three million, nine hundred seventy-three thousand, one hundred sixty-six".