622992 has 20 divisors (see below), whose sum is σ = 1609520. Its totient is φ = 207648.

The previous prime is 622987. The next prime is 622997. The reversal of 622992 is 299226.

It is an interprime number because it is at equal distance from previous prime (622987) and next prime (622997).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 622992.

It is not an unprimeable number, because it can be changed into a prime (622997) by changing a digit.

622992 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6442 + ... + 6537.

It is an arithmetic number, because the mean of its divisors is an integer number (80476).

2⁶²²⁹⁹² is an apocalyptic number.

It is an amenable number.

622992 is an abundant number, since it is smaller than the sum of its proper divisors (986528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622992 is a wasteful number, since it uses less digits than its factorization.

622992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12990 (or 12984 counting only the distinct ones).

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

The square root of 622992 is about 789.2984226514. The cubic root of 622992 is about 85.4071355880.

The spelling of 622992 in words is "six hundred twenty-two thousand, nine hundred ninety-two".