197804196 has 36 divisors (see below), whose sum is σ = 501611292. Its totient is φ = 65722944.

The previous prime is 197804179. The next prime is 197804219. The reversal of 197804196 is 691408791.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10497600 + 187306596 = 3240^2 + 13686^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2746 + ... + 20078.

It is an arithmetic number, because the mean of its divisors is an integer number (13933647).

Almost surely, 2^197804196 is an apocalyptic number.

It is an amenable number.

197804196 is an abundant number, since it is smaller than the sum of its proper divisors (303807096).

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

197804196 is a wasteful number, since it uses less digits than its factorization.

197804196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17660 (or 17655 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 197804196 is about 14064.2879663352. The cubic root of 197804196 is about 582.6554771721.

The spelling of 197804196 in words is "one hundred ninety-seven million, eight hundred four thousand, one hundred ninety-six".