3220753 has 4 divisors (see below), whose sum is σ = 3237300. Its totient is φ = 3204208.

The previous prime is 3220727. The next prime is 3220771. The reversal of 3220753 is 3570223.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2039184 + 1181569 = 1428^2 + 1087^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220753 - 2²¹ = 1123601 is a prime.

It is a super-3 number, since 3×3220753³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

3220753 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220703) 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, 7978 + ... + 8371.

It is an arithmetic number, because the mean of its divisors is an integer number (809325).

Almost surely, 2^3220753 is an apocalyptic number.

It is an amenable number.

3220753 is a deficient number, since it is larger than the sum of its proper divisors (16547).

3220753 is a wasteful number, since it uses less digits than its factorization.

3220753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16546.

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

The square root of 3220753 is about 1794.6456474747. The cubic root of 3220753 is about 147.6791350334.

Adding to 3220753 its reverse (3570223), we get a palindrome (6790976).

The spelling of 3220753 in words is "three million, two hundred twenty thousand, seven hundred fifty-three".