622723 has 2 divisors, whose sum is σ = 622724. Its totient is φ = 622722.

The previous prime is 622709. The next prime is 622729. The reversal of 622723 is 327226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 622723 - 2¹³ = 614531 is a prime.

622723 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 622694 and 622703.

It is not a weakly prime, because it can be changed into another prime (622729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311361 + 311362.

It is an arithmetic number, because the mean of its divisors is an integer number (311362).

2⁶²²⁷²³ is an apocalyptic number.

622723 is a deficient number, since it is larger than the sum of its proper divisors (1).

622723 is an equidigital number, since it uses as much as digits as its factorization.

622723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 22.

The square root of 622723 is about 789.1279997567. The cubic root of 622723 is about 85.3948412477.

Adding to 622723 its reverse (327226), we get a palindrome (949949).

The spelling of 622723 in words is "six hundred twenty-two thousand, seven hundred twenty-three".