3946217 has 4 divisors (see below), whose sum is σ = 4304976. Its totient is φ = 3587460.

The previous prime is 3946213. The next prime is 3946219. The reversal of 3946217 is 7126493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3946217 - 2² = 3946213 is a prime.

It is a super-2 number, since 2×3946217² = 31145257222178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3946211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179363 + ... + 179384.

It is an arithmetic number, because the mean of its divisors is an integer number (1076244).

Almost surely, 2^3946217 is an apocalyptic number.

It is an amenable number.

3946217 is a deficient number, since it is larger than the sum of its proper divisors (358759).

3946217 is a wasteful number, since it uses less digits than its factorization.

3946217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358758.

The product of its digits is 9072, while the sum is 32.

The square root of 3946217 is about 1986.5087465199. The cubic root of 3946217 is about 158.0254325348.

The spelling of 3946217 in words is "three million, nine hundred forty-six thousand, two hundred seventeen".