198023323 has 4 divisors (see below), whose sum is σ = 198575280. Its totient is φ = 197471368.

The previous prime is 198023311. The next prime is 198023351. The reversal of 198023323 is 323320891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198023323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198093323) 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, 275440 + ... + 276157.

It is an arithmetic number, because the mean of its divisors is an integer number (49643820).

Almost surely, 2^198023323 is an apocalyptic number.

198023323 is a deficient number, since it is larger than the sum of its proper divisors (551957).

198023323 is an equidigital number, since it uses as much as digits as its factorization.

198023323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551956.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 198023323 is about 14072.0760017845. The cubic root of 198023323 is about 582.8705525380.

The spelling of 198023323 in words is "one hundred ninety-eight million, twenty-three thousand, three hundred twenty-three".