3220866 has 24 divisors (see below), whose sum is σ = 7613424. Its totient is φ = 975960.

The previous prime is 3220859. The next prime is 3220873. The reversal of 3220866 is 6680223.

It is an interprime number because it is at equal distance from previous prime (3220859) and next prime (3220873).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7936 + ... + 8331.

It is an arithmetic number, because the mean of its divisors is an integer number (317226).

Almost surely, 2^3220866 is an apocalyptic number.

3220866 is an abundant number, since it is smaller than the sum of its proper divisors (4392558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3220866 is a wasteful number, since it uses less digits than its factorization.

3220866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16286 (or 16283 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 3220866 is about 1794.6771297367. The cubic root of 3220866 is about 147.6808621188.

The spelling of 3220866 in words is "three million, two hundred twenty thousand, eight hundred sixty-six".