197565928 has 16 divisors (see below), whose sum is σ = 423355680. Its totient is φ = 84671088.

The previous prime is 197565911. The next prime is 197565931. The reversal of 197565928 is 829565791.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1763926 + ... + 1764037.

It is an arithmetic number, because the mean of its divisors is an integer number (26459730).

Almost surely, 2^197565928 is an apocalyptic number.

It is an amenable number.

197565928 is an abundant number, since it is smaller than the sum of its proper divisors (225789752).

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

197565928 is a wasteful number, since it uses less digits than its factorization.

197565928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527976 (or 3527972 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 52.

The square root of 197565928 is about 14055.8147398150. The cubic root of 197565928 is about 582.4214343865.

The spelling of 197565928 in words is "one hundred ninety-seven million, five hundred sixty-five thousand, nine hundred twenty-eight".