622899 has 12 divisors (see below), whose sum is σ = 914056. Its totient is φ = 408672.

The previous prime is 622889. The next prime is 622901. The reversal of 622899 is 998226.

It is not a de Polignac number, because 622899 - 2¹⁵ = 590131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87 + ... + 1119.

2⁶²²⁸⁹⁹ is an apocalyptic number.

622899 is a deficient number, since it is larger than the sum of its proper divisors (291157).

622899 is a wasteful number, since it uses less digits than its factorization.

622899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1103 counting only the distinct ones).

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

The square root of 622899 is about 789.2395073740. The cubic root of 622899 is about 85.4028855287.

It can be divided in two parts, 622 and 899, that added together give a square (1521 = 39²).

The spelling of 622899 in words is "six hundred twenty-two thousand, eight hundred ninety-nine".