3220870 has 16 divisors (see below), whose sum is σ = 5842368. Its totient is φ = 1278400.

The previous prime is 3220859. The next prime is 3220873. The reversal of 3220870 is 780223.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 195 + ... + 2545.

It is an arithmetic number, because the mean of its divisors is an integer number (365148).

Almost surely, 2^3220870 is an apocalyptic number.

3220870 is a deficient number, since it is larger than the sum of its proper divisors (2621498).

3220870 is a wasteful number, since it uses less digits than its factorization.

3220870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 3220870 is about 1794.6782441429. The cubic root of 3220870 is about 147.6809232539.

It can be divided in two parts, 32 and 20870, that added together give a palindrome (20902).

The spelling of 3220870 in words is "three million, two hundred twenty thousand, eight hundred seventy".