3973156 has 18 divisors (see below), whose sum is σ = 7643510. Its totient is φ = 1805760.

The previous prime is 3973153. The next prime is 3973163. The reversal of 3973156 is 6513793.

It can be written as a sum of positive squares in only one way, i.e., 2509056 + 1464100 = 1584^2 + 1210^2 .

It is not an unprimeable number, because it can be changed into a prime (3973153) 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, 3621 + ... + 4588.

Almost surely, 2^3973156 is an apocalyptic number.

It is an amenable number.

3973156 is a deficient number, since it is larger than the sum of its proper divisors (3670354).

3973156 is a wasteful number, since it uses less digits than its factorization.

3973156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235 (or 8222 counting only the distinct ones).

The product of its digits is 17010, while the sum is 34.

The square root of 3973156 is about 1993.2777026797. The cubic root of 3973156 is about 158.3842062442.

It can be divided in two parts, 397 and 3156, that added together give a palindrome (3553).

The spelling of 3973156 in words is "three million, nine hundred seventy-three thousand, one hundred fifty-six".