3220351 has 2 divisors, whose sum is σ = 3220352. Its totient is φ = 3220350.

The previous prime is 3220319. The next prime is 3220381. The reversal of 3220351 is 1530223.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3220351 - 2⁵ = 3220319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3220381) 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 as a sum of consecutive naturals, namely, 1610175 + 1610176.

It is an arithmetic number, because the mean of its divisors is an integer number (1610176).

Almost surely, 2^3220351 is an apocalyptic number.

3220351 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220351 is an equidigital number, since it uses as much as digits as its factorization.

3220351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 3220351 is about 1794.5336441538. The cubic root of 3220351 is about 147.6729905611.

Adding to 3220351 its reverse (1530223), we get a palindrome (4750574).

The spelling of 3220351 in words is "three million, two hundred twenty thousand, three hundred fifty-one".