2622623 has 2 divisors, whose sum is σ = 2622624. Its totient is φ = 2622622.

The previous prime is 2622619. The next prime is 2622637. The reversal of 2622623 is 3262262.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2622623 - 2² = 2622619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2622923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1311311 + 1311312.

It is an arithmetic number, because the mean of its divisors is an integer number (1311312).

2^2622623 is an apocalyptic number.

2622623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2622623 is an equidigital number, since it uses as much as digits as its factorization.

2622623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 2622623 is about 1619.4514503374. The cubic root of 2622623 is about 137.9045583859.

Adding to 2622623 its reverse (3262262), we get a palindrome (5884885).

The spelling of 2622623 in words is "two million, six hundred twenty-two thousand, six hundred twenty-three".