3975217 has 2 divisors, whose sum is σ = 3975218. Its totient is φ = 3975216.

The previous prime is 3975197. The next prime is 3975239. The reversal of 3975217 is 7125793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3254416 + 720801 = 1804^2 + 849^2 .

It is a cyclic number.

It is not a de Polignac number, because 3975217 - 2⁷ = 3975089 is a prime.

It is not a weakly prime, because it can be changed into another prime (3975247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987608 + 1987609.

It is an arithmetic number, because the mean of its divisors is an integer number (1987609).

Almost surely, 2^3975217 is an apocalyptic number.

It is an amenable number.

3975217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3975217 is an equidigital number, since it uses as much as digits as its factorization.

3975217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 34.

The square root of 3975217 is about 1993.7946233251. The cubic root of 3975217 is about 158.4115877869.

The spelling of 3975217 in words is "three million, nine hundred seventy-five thousand, two hundred seventeen".