2221589 has 2 divisors, whose sum is σ = 2221590. Its totient is φ = 2221588.

The previous prime is 2221567. The next prime is 2221631. The reversal of 2221589 is 9851222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2053489 + 168100 = 1433^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221589 - 2⁸ = 2221333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110794 + 1110795.

It is an arithmetic number, because the mean of its divisors is an integer number (1110795).

2^2221589 is an apocalyptic number.

It is an amenable number.

2221589 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221589 is an equidigital number, since it uses as much as digits as its factorization.

2221589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 2221589 is about 1490.4995806776. The cubic root of 2221589 is about 130.4831919555.

The spelling of 2221589 in words is "two million, two hundred twenty-one thousand, five hundred eighty-nine".