622984 has 16 divisors (see below), whose sum is σ = 1195920. Its totient is φ = 304080.

The previous prime is 622967. The next prime is 622987. The reversal of 622984 is 489226.

It is not an unprimeable number, because it can be changed into a prime (622987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (74745).

2⁶²²⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

622984 is a deficient number, since it is larger than the sum of its proper divisors (572936).

622984 is a wasteful number, since it uses less digits than its factorization.

622984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1856 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 622984 is about 789.2933548434. The cubic root of 622984 is about 85.4067700081.

The spelling of 622984 in words is "six hundred twenty-two thousand, nine hundred eighty-four".