3220735 has 16 divisors (see below), whose sum is σ = 4677696. Its totient is φ = 2078208.

The previous prime is 3220727. The next prime is 3220771. The reversal of 3220735 is 5370223.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3220735 - 2³ = 3220727 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2112 + ... + 3301.

It is an arithmetic number, because the mean of its divisors is an integer number (292356).

Almost surely, 2^3220735 is an apocalyptic number.

3220735 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3220735 is a deficient number, since it is larger than the sum of its proper divisors (1456961).

3220735 is a wasteful number, since it uses less digits than its factorization.

3220735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 3220735 is about 1794.6406325501. The cubic root of 3220735 is about 147.6788599187.

Adding to 3220735 its reverse (5370223), we get a palindrome (8590958).

The spelling of 3220735 in words is "three million, two hundred twenty thousand, seven hundred thirty-five".