3220871 has 4 divisors (see below), whose sum is σ = 3410352. Its totient is φ = 3031392.

The previous prime is 3220859. The next prime is 3220873. The reversal of 3220871 is 1780223.

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

It is a cyclic number.

It is not a de Polignac number, because 3220871 - 2¹⁰ = 3219847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220873) 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, 94715 + ... + 94748.

It is an arithmetic number, because the mean of its divisors is an integer number (852588).

Almost surely, 2^3220871 is an apocalyptic number.

3220871 is a deficient number, since it is larger than the sum of its proper divisors (189481).

3220871 is a wasteful number, since it uses less digits than its factorization.

3220871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189480.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3220871 is about 1794.6785227444. The cubic root of 3220871 is about 147.6809385376.

The spelling of 3220871 in words is "three million, two hundred twenty thousand, eight hundred seventy-one".