197306988 has 24 divisors (see below), whose sum is σ = 462773808. Its totient is φ = 65427456.

The previous prime is 197306959. The next prime is 197307007. The reversal of 197306988 is 889603791.

197306988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 197306988.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40281 + ... + 44912.

It is an arithmetic number, because the mean of its divisors is an integer number (19282242).

Almost surely, 2^197306988 is an apocalyptic number.

It is an amenable number.

197306988 is an abundant number, since it is smaller than the sum of its proper divisors (265466820).

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

197306988 is a wasteful number, since it uses less digits than its factorization.

197306988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85393 (or 85391 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 197306988 is about 14046.6005851950. The cubic root of 197306988 is about 582.1668727099.

The spelling of 197306988 in words is "one hundred ninety-seven million, three hundred six thousand, nine hundred eighty-eight".