197577223 has 4 divisors (see below), whose sum is σ = 199325808. Its totient is φ = 195828640.

The previous prime is 197577221. The next prime is 197577239. The reversal of 197577223 is 322775791.

197577223 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 197577223 - 2¹ = 197577221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197577223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197577221) 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, 874123 + ... + 874348.

It is an arithmetic number, because the mean of its divisors is an integer number (49831452).

Almost surely, 2^197577223 is an apocalyptic number.

197577223 is a deficient number, since it is larger than the sum of its proper divisors (1748585).

197577223 is a wasteful number, since it uses less digits than its factorization.

197577223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748584.

The product of its digits is 185220, while the sum is 43.

The square root of 197577223 is about 14056.2165250824. The cubic root of 197577223 is about 582.4325333393.

The spelling of 197577223 in words is "one hundred ninety-seven million, five hundred seventy-seven thousand, two hundred twenty-three".