3220535 has 4 divisors (see below), whose sum is σ = 3864648. Its totient is φ = 2576424.

The previous prime is 3220523. The next prime is 3220543. The reversal of 3220535 is 5350223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5350223 = 17 ⋅314719.

It is a cyclic number.

It is not a de Polignac number, because 3220535 - 2⁶ = 3220471 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322049 + ... + 322058.

It is an arithmetic number, because the mean of its divisors is an integer number (966162).

Almost surely, 2^3220535 is an apocalyptic number.

3220535 is a deficient number, since it is larger than the sum of its proper divisors (644113).

3220535 is an equidigital number, since it uses as much as digits as its factorization.

3220535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644112.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 3220535 is about 1794.5849102230. The cubic root of 3220535 is about 147.6758030198.

Adding to 3220535 its reverse (5350223), we get a palindrome (8570758).

The spelling of 3220535 in words is "three million, two hundred twenty thousand, five hundred thirty-five".