197809896 has 16 divisors (see below), whose sum is σ = 494524800. Its totient is φ = 65936624.

The previous prime is 197809889. The next prime is 197809897. The reversal of 197809896 is 698908791.

It is not an unprimeable number, because it can be changed into a prime (197809897) 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, 4121016 + ... + 4121063.

It is an arithmetic number, because the mean of its divisors is an integer number (30907800).

Almost surely, 2^197809896 is an apocalyptic number.

It is an amenable number.

197809896 is an abundant number, since it is smaller than the sum of its proper divisors (296714904).

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

197809896 is a wasteful number, since it uses less digits than its factorization.

197809896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8242088 (or 8242084 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 57.

The square root of 197809896 is about 14064.4906057774. The cubic root of 197809896 is about 582.6610737913.

The spelling of 197809896 in words is "one hundred ninety-seven million, eight hundred nine thousand, eight hundred ninety-six".