622929 has 4 divisors (see below), whose sum is σ = 830576. Its totient is φ = 415284.

The previous prime is 622927. The next prime is 622943. The reversal of 622929 is 929226.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 622929 - 2¹ = 622927 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 622896 and 622905.

It is not an unprimeable number, because it can be changed into a prime (622927) 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 3 ways as a sum of consecutive naturals, for example, 103819 + ... + 103824.

It is an arithmetic number, because the mean of its divisors is an integer number (207644).

2⁶²²⁹²⁹ is an apocalyptic number.

It is an amenable number.

622929 is a deficient number, since it is larger than the sum of its proper divisors (207647).

622929 is a wasteful number, since it uses less digits than its factorization.

622929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207646.

The product of its digits is 3888, while the sum is 30.

The square root of 622929 is about 789.2585127827. The cubic root of 622929 is about 85.4042565618.

It can be divided in two parts, 622 and 929, that added together give a palindrome (1551).

The spelling of 622929 in words is "six hundred twenty-two thousand, nine hundred twenty-nine".