3217285 has 4 divisors (see below), whose sum is σ = 3860748. Its totient is φ = 2573824.

The previous prime is 3217243. The next prime is 3217297. The reversal of 3217285 is 5827123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5827123 = 577 ⋅10099.

It can be written as a sum of positive squares in 2 ways, for example, as 1329409 + 1887876 = 1153^2 + 1374^2 .

It is a cyclic number.

It is not a de Polignac number, because 3217285 - 2⁷ = 3217157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321724 + ... + 321733.

It is an arithmetic number, because the mean of its divisors is an integer number (965187).

Almost surely, 2^3217285 is an apocalyptic number.

It is an amenable number.

3217285 is a deficient number, since it is larger than the sum of its proper divisors (643463).

3217285 is an equidigital number, since it uses as much as digits as its factorization.

3217285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643462.

The product of its digits is 3360, while the sum is 28.

The square root of 3217285 is about 1793.6791797866. The cubic root of 3217285 is about 147.6261106658.

The spelling of 3217285 in words is "three million, two hundred seventeen thousand, two hundred eighty-five".