2622789 has 24 divisors (see below), whose sum is σ = 4226040. Its totient is φ = 1556352.

The previous prime is 2622773. The next prime is 2622799. The reversal of 2622789 is 9872262.

It can be written as a sum of positive squares in 4 ways, for example, as 8100 + 2614689 = 90^2 + 1617^2 .

It is not a de Polignac number, because 2622789 - 2⁴ = 2622773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2622749) 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 23 ways as a sum of consecutive naturals, for example, 3007 + ... + 3779.

It is an arithmetic number, because the mean of its divisors is an integer number (176085).

2^2622789 is an apocalyptic number.

2622789 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2622789 is a deficient number, since it is larger than the sum of its proper divisors (1603251).

2622789 is a wasteful number, since it uses less digits than its factorization.

2622789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 818 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 2622789 is about 1619.5027014488. The cubic root of 2622789 is about 137.9074678997.

The spelling of 2622789 in words is "two million, six hundred twenty-two thousand, seven hundred eighty-nine".