3220475 has 6 divisors (see below), whose sum is σ = 3993420. Its totient is φ = 2576360.

The previous prime is 3220471. The next prime is 3220499. The reversal of 3220475 is 5740223.

It is not a de Polignac number, because 3220475 - 2² = 3220471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3220475.

It is not an unprimeable number, because it can be changed into a prime (3220471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64385 + ... + 64434.

It is an arithmetic number, because the mean of its divisors is an integer number (665570).

Almost surely, 2^3220475 is an apocalyptic number.

3220475 is a deficient number, since it is larger than the sum of its proper divisors (772945).

3220475 is a wasteful number, since it uses less digits than its factorization.

3220475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128829 (or 128824 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 3220475 is about 1794.5681931874. The cubic root of 3220475 is about 147.6748859255.

Adding to 3220475 its reverse (5740223), we get a palindrome (8960698).

The spelling of 3220475 in words is "three million, two hundred twenty thousand, four hundred seventy-five".