198247223 has 4 divisors (see below), whose sum is σ = 199136448. Its totient is φ = 197358000.

The previous prime is 198247213. The next prime is 198247241. The reversal of 198247223 is 322742891.

198247223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 198247223 - 2⁸ = 198246967 is a prime.

It is a super-2 number, since 2×198247223² = 78603922854423458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198247213) 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, 444278 + ... + 444723.

It is an arithmetic number, because the mean of its divisors is an integer number (49784112).

Almost surely, 2^198247223 is an apocalyptic number.

198247223 is a deficient number, since it is larger than the sum of its proper divisors (889225).

198247223 is an equidigital number, since it uses as much as digits as its factorization.

198247223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889224.

The product of its digits is 48384, while the sum is 38.

The square root of 198247223 is about 14080.0292258219. The cubic root of 198247223 is about 583.0901488285.

The spelling of 198247223 in words is "one hundred ninety-eight million, two hundred forty-seven thousand, two hundred twenty-three".