197928597 has 16 divisors (see below), whose sum is σ = 267438080. Its totient is φ = 130194432.

The previous prime is 197928551. The next prime is 197928667. The reversal of 197928597 is 795829791.

197928597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197928597 - 2¹⁰ = 197927573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197928517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118188 + ... + 119850.

It is an arithmetic number, because the mean of its divisors is an integer number (16714880).

Almost surely, 2^197928597 is an apocalyptic number.

It is an amenable number.

197928597 is a deficient number, since it is larger than the sum of its proper divisors (69509483).

197928597 is a wasteful number, since it uses less digits than its factorization.

197928597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172.

The product of its digits is 2857680, while the sum is 57.

The square root of 197928597 is about 14068.7098555624. The cubic root of 197928597 is about 582.7775974906. Note that the first 3 decimals are identical.

The spelling of 197928597 in words is "one hundred ninety-seven million, nine hundred twenty-eight thousand, five hundred ninety-seven".