197536728 has 16 divisors (see below), whose sum is σ = 493841880. Its totient is φ = 65845568.

The previous prime is 197536693. The next prime is 197536741. The reversal of 197536728 is 827635791.

It is a congruent number.

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, 4115325 + ... + 4115372.

Almost surely, 2^197536728 is an apocalyptic number.

It is an amenable number.

197536728 is an abundant number, since it is smaller than the sum of its proper divisors (296305152).

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

197536728 is a wasteful number, since it uses less digits than its factorization.

197536728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8230706 (or 8230702 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The square root of 197536728 is about 14054.7759854079. The cubic root of 197536728 is about 582.3927392500.

The spelling of 197536728 in words is "one hundred ninety-seven million, five hundred thirty-six thousand, seven hundred twenty-eight".