622199 has 4 divisors (see below), whose sum is σ = 629280. Its totient is φ = 615120.

The previous prime is 622189. The next prime is 622241. The reversal of 622199 is 991226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991226 = 2 ⋅495613.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622109) 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, 3407 + ... + 3584.

It is an arithmetic number, because the mean of its divisors is an integer number (157320).

2⁶²²¹⁹⁹ is an apocalyptic number.

622199 is a deficient number, since it is larger than the sum of its proper divisors (7081).

622199 is an equidigital number, since it uses as much as digits as its factorization.

622199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080.

The product of its digits is 1944, while the sum is 29.

The square root of 622199 is about 788.7959178393. The cubic root of 622199 is about 85.3708822516.

Subtracting from 622199 its sum of digits (29), we obtain a triangular number (622170 = T₁₁₁₅).

The spelling of 622199 in words is "six hundred twenty-two thousand, one hundred ninety-nine".