622998 has 32 divisors (see below), whose sum is σ = 1411200. Its totient is φ = 203688.

The previous prime is 622997. The next prime is 623003. The reversal of 622998 is 899226.

It is a congruent number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4413 + ... + 4551.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2⁶²²⁹⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705600).

622998 is an abundant number, since it is smaller than the sum of its proper divisors (788202).

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

622998 is a wasteful number, since it uses less digits than its factorization.

622998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 227 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 622998 is about 789.3022234860. The cubic root of 622998 is about 85.4074097708.

The spelling of 622998 in words is "six hundred twenty-two thousand, nine hundred ninety-eight".