622946 has 4 divisors (see below), whose sum is σ = 934422. Its totient is φ = 311472.

The previous prime is 622943. The next prime is 622957. The reversal of 622946 is 649226.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 474721 + 148225 = 689^2 + 385^2 .

It is not an unprimeable number, because it can be changed into a prime (622943) 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 as a sum of consecutive naturals, namely, 155735 + ... + 155738.

2⁶²²⁹⁴⁶ is an apocalyptic number.

622946 is a deficient number, since it is larger than the sum of its proper divisors (311476).

622946 is a wasteful number, since it uses less digits than its factorization.

622946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311475.

The product of its digits is 5184, while the sum is 29.

The square root of 622946 is about 789.2692823112. The cubic root of 622946 is about 85.4050334610.

The spelling of 622946 in words is "six hundred twenty-two thousand, nine hundred forty-six".