3971004 has 12 divisors (see below), whose sum is σ = 9265704. Its totient is φ = 1323664.

The previous prime is 3970997. The next prime is 3971027. The reversal of 3971004 is 4001793.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165447 + ... + 165470.

It is an arithmetic number, because the mean of its divisors is an integer number (772142).

Almost surely, 2^3971004 is an apocalyptic number.

It is an amenable number.

3971004 is an abundant number, since it is smaller than the sum of its proper divisors (5294700).

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

3971004 is a wasteful number, since it uses less digits than its factorization.

3971004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330924 (or 330922 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 3971004 is about 1992.7378151679. The cubic root of 3971004 is about 158.3556056080.

Adding to 3971004 its reverse (4001793), we get a palindrome (7972797).

The spelling of 3971004 in words is "three million, nine hundred seventy-one thousand, four".