197698228 has 72 divisors (see below), whose sum is σ = 439024320. Its totient is φ = 76227840.

The previous prime is 197698223. The next prime is 197698247. The reversal of 197698228 is 822896791.

197698228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197698223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193503 + ... + 194521.

It is an arithmetic number, because the mean of its divisors is an integer number (6097560).

Almost surely, 2^197698228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197698228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219512160).

197698228 is an abundant number, since it is smaller than the sum of its proper divisors (241326092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197698228 is a wasteful number, since it uses less digits than its factorization.

197698228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1082 counting only the distinct ones).

The product of its digits is 870912, while the sum is 52.

The square root of 197698228 is about 14060.5201895236. The cubic root of 197698228 is about 582.5514115257.

The spelling of 197698228 in words is "one hundred ninety-seven million, six hundred ninety-eight thousand, two hundred twenty-eight".