3972173 has 2 divisors, whose sum is σ = 3972174. Its totient is φ = 3972172.

The previous prime is 3972167. The next prime is 3972181. The reversal of 3972173 is 3712793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2896804 + 1075369 = 1702^2 + 1037^2 .

It is a cyclic number.

It is not a de Polignac number, because 3972173 - 2⁸ = 3971917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3972103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1986086 + 1986087.

It is an arithmetic number, because the mean of its divisors is an integer number (1986087).

Almost surely, 2^3972173 is an apocalyptic number.

It is an amenable number.

3972173 is a deficient number, since it is larger than the sum of its proper divisors (1).

3972173 is an equidigital number, since it uses as much as digits as its factorization.

3972173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 32.

The square root of 3972173 is about 1993.0311086383. The cubic root of 3972173 is about 158.3711432018.

The spelling of 3972173 in words is "three million, nine hundred seventy-two thousand, one hundred seventy-three".