3478217 has 4 divisors (see below), whose sum is σ = 3682836. Its totient is φ = 3273600.

The previous prime is 3478201. The next prime is 3478229. The reversal of 3478217 is 7128743.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2611456 + 866761 = 1616^2 + 931^2 .

It is a cyclic number.

It is not a de Polignac number, because 3478217 - 2⁴ = 3478201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3478247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102284 + ... + 102317.

It is an arithmetic number, because the mean of its divisors is an integer number (920709).

Almost surely, 2^3478217 is an apocalyptic number.

It is an amenable number.

3478217 is a deficient number, since it is larger than the sum of its proper divisors (204619).

3478217 is a wasteful number, since it uses less digits than its factorization.

3478217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204618.

The product of its digits is 9408, while the sum is 32.

The square root of 3478217 is about 1864.9978552266. The cubic root of 3478217 is about 151.5138118383.

The spelling of 3478217 in words is "three million, four hundred seventy-eight thousand, two hundred seventeen".