197017028 has 24 divisors (see below), whose sum is σ = 383281920. Its totient is φ = 87996960.

The previous prime is 197017003. The next prime is 197017069. The reversal of 197017028 is 820710791.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59498 + ... + 62721.

It is an arithmetic number, because the mean of its divisors is an integer number (15970080).

Almost surely, 2^197017028 is an apocalyptic number.

It is an amenable number.

197017028 is a deficient number, since it is larger than the sum of its proper divisors (186264892).

197017028 is a wasteful number, since it uses less digits than its factorization.

197017028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122267 (or 122265 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 197017028 is about 14036.2754318943. The cubic root of 197017028 is about 581.8815510613.

The spelling of 197017028 in words is "one hundred ninety-seven million, seventeen thousand, twenty-eight".