2622889 has 2 divisors, whose sum is σ = 2622890. Its totient is φ = 2622888.

The previous prime is 2622863. The next prime is 2622911. The reversal of 2622889 is 9882262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1710864 + 912025 = 1308^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2622889 - 2⁵ = 2622857 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 6⁴ + 2¹⁹ + 2²¹ + 8 + 8 + 9 .

It is not a weakly prime, because it can be changed into another prime (2628889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1311444 + 1311445.

It is an arithmetic number, because the mean of its divisors is an integer number (1311445).

2^2622889 is an apocalyptic number.

It is an amenable number.

2622889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2622889 is an equidigital number, since it uses as much as digits as its factorization.

2622889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 2622889 is about 1619.5335748295. The cubic root of 2622889 is about 137.9092205596.

The spelling of 2622889 in words is "two million, six hundred twenty-two thousand, eight hundred eighty-nine".