190398223 has 4 divisors (see below), whose sum is σ = 190909048. Its totient is φ = 189887400.

The previous prime is 190398217. The next prime is 190398227. The reversal of 190398223 is 322893091.

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-190398223 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 (190398227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254853 + ... + 255598.

It is an arithmetic number, because the mean of its divisors is an integer number (47727262).

Almost surely, 2^190398223 is an apocalyptic number.

190398223 is a deficient number, since it is larger than the sum of its proper divisors (510825).

190398223 is an equidigital number, since it uses as much as digits as its factorization.

190398223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510824.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 190398223 is about 13798.4862575574. The cubic root of 190398223 is about 575.2910667509.

The spelling of 190398223 in words is "one hundred ninety million, three hundred ninety-eight thousand, two hundred twenty-three".