3221567 has 2 divisors, whose sum is σ = 3221568. Its totient is φ = 3221566.

The previous prime is 3221557. The next prime is 3221573. The reversal of 3221567 is 7651223.

3221567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3221567 - 2⁶ = 3221503 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3221557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610783 + 1610784.

It is an arithmetic number, because the mean of its divisors is an integer number (1610784).

Almost surely, 2^3221567 is an apocalyptic number.

3221567 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221567 is an equidigital number, since it uses as much as digits as its factorization.

3221567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 26.

The square root of 3221567 is about 1794.8724188644. The cubic root of 3221567 is about 147.6915752598.

The spelling of 3221567 in words is "three million, two hundred twenty-one thousand, five hundred sixty-seven".