197824226 has 4 divisors (see below), whose sum is σ = 296736342. Its totient is φ = 98912112.

The previous prime is 197824213. The next prime is 197824243. The reversal of 197824226 is 622428791.

It is a Cunningham number, because it is equal to 14065²+1.

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

It can be written as a sum of positive squares in only one way, i.e., 197824225 + 1 = 14065^2 + 1^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49456055 + ... + 49456058.

Almost surely, 2^197824226 is an apocalyptic number.

197824226 is a deficient number, since it is larger than the sum of its proper divisors (98912116).

197824226 is an equidigital number, since it uses as much as digits as its factorization.

197824226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98912115.

The product of its digits is 96768, while the sum is 41.

The square root of 197824226 is about 14065.0000355492. Note that the first 4 decimals coincide. The cubic root of 197824226 is about 582.6751434136.

The spelling of 197824226 in words is "one hundred ninety-seven million, eight hundred twenty-four thousand, two hundred twenty-six".