3972004 has 6 divisors (see below), whose sum is σ = 6951014. Its totient is φ = 1986000.

The previous prime is 3971993. The next prime is 3972011. The reversal of 3972004 is 4002793.

It can be written as a sum of positive squares in only one way, i.e., 3069504 + 902500 = 1752^2 + 950^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3972004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496497 + ... + 496504.

Almost surely, 2^3972004 is an apocalyptic number.

It is an amenable number.

3972004 is a deficient number, since it is larger than the sum of its proper divisors (2979010).

3972004 is a wasteful number, since it uses less digits than its factorization.

3972004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993005 (or 993003 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3972004 is about 1992.9887104547. The cubic root of 3972004 is about 158.3688971513.

Adding to 3972004 its reverse (4002793), we get a palindrome (7974797).

It can be divided in two parts, 397 and 2004, that added together give a 4-th power (2401 = 7⁴).

The spelling of 3972004 in words is "three million, nine hundred seventy-two thousand, four".