622969 has 8 divisors (see below), whose sum is σ = 649800. Its totient is φ = 596736.

The previous prime is 622967. The next prime is 622987. The reversal of 622969 is 969226.

It can be written as a sum of positive squares in 4 ways, for example, as 3600 + 619369 = 60^2 + 787^2 .

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

It is not a de Polignac number, because 622969 - 2¹ = 622967 is a prime.

It is a super-2 number, since 2×622969² = 776180749922, which contains 22 as substring.

It is a Duffinian number.

622969 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (622967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4107 + ... + 4255.

It is an arithmetic number, because the mean of its divisors is an integer number (81225).

2⁶²²⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

622969 is a deficient number, since it is larger than the sum of its proper divisors (26831).

622969 is a wasteful number, since it uses less digits than its factorization.

622969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its digits is 11664, while the sum is 34.

The square root of 622969 is about 789.2838526158. The cubic root of 622969 is about 85.4060845374.

The spelling of 622969 in words is "six hundred twenty-two thousand, nine hundred sixty-nine".