2622005 has 8 divisors (see below), whose sum is σ = 3231672. Its totient is φ = 2040768.

The previous prime is 2621987. The next prime is 2622013. The reversal of 2622005 is 5002262.

It can be written as a sum of positive squares in 4 ways, for example, as 1234321 + 1387684 = 1111^2 + 1178^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2622005 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6902 + ... + 7271.

It is an arithmetic number, because the mean of its divisors is an integer number (403959).

2^2622005 is an apocalyptic number.

It is an amenable number.

2622005 is a deficient number, since it is larger than the sum of its proper divisors (609667).

2622005 is a wasteful number, since it uses less digits than its factorization.

2622005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14215.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2622005 is about 1619.2606337462. The cubic root of 2622005 is about 137.8937255019.

Adding to 2622005 its reverse (5002262), we get a palindrome (7624267).

The spelling of 2622005 in words is "two million, six hundred twenty-two thousand, five".