2622289 has 4 divisors (see below), whose sum is σ = 2626624. Its totient is φ = 2617956.

The previous prime is 2622287. The next prime is 2622293. The reversal of 2622289 is 9822262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9822262 = 2 ⋅4911131.

It is a cyclic number.

It is not a de Polignac number, because 2622289 - 2¹ = 2622287 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 6³ + 2⁹ + 2¹⁹ + 2²¹ + 8 + 9² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2622289.

It is not an unprimeable number, because it can be changed into a prime (2622283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077 + ... + 2530.

It is an arithmetic number, because the mean of its divisors is an integer number (656656).

2^2622289 is an apocalyptic number.

It is an amenable number.

2622289 is a deficient number, since it is larger than the sum of its proper divisors (4335).

2622289 is an equidigital number, since it uses as much as digits as its factorization.

2622289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334.

The product of its digits is 6912, while the sum is 31.

The square root of 2622289 is about 1619.3483257162. The cubic root of 2622289 is about 137.8987039318.

The spelling of 2622289 in words is "two million, six hundred twenty-two thousand, two hundred eighty-nine".