198622 has 8 divisors (see below), whose sum is σ = 304416. Its totient is φ = 97152.

The previous prime is 198613. The next prime is 198623. The reversal of 198622 is 226891.

It is a happy number.

198622 is nontrivially palindromic in base 6.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963 + ... + 1150.

It is an arithmetic number, because the mean of its divisors is an integer number (38052).

2¹⁹⁸⁶²² is an apocalyptic number.

198622 is a deficient number, since it is larger than the sum of its proper divisors (105794).

198622 is a wasteful number, since it uses less digits than its factorization.

198622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162.

The product of its digits is 1728, while the sum is 28.

The square root of 198622 is about 445.6702817106. The cubic root of 198622 is about 58.3457352316.

It can be divided in two parts, 198 and 622, that added together give a triangular number (820 = T₄₀).

The spelling of 198622 in words is "one hundred ninety-eight thousand, six hundred twenty-two".