197801297 has 16 divisors (see below), whose sum is σ = 210737664. Its totient is φ = 185328000.

The previous prime is 197801291. The next prime is 197801299. The reversal of 197801297 is 792108791.

197801297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197801297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197801291) 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, 379397 + ... + 379917.

It is an arithmetic number, because the mean of its divisors is an integer number (13171104).

Almost surely, 2^197801297 is an apocalyptic number.

It is an amenable number.

197801297 is a deficient number, since it is larger than the sum of its proper divisors (12936367).

197801297 is a wasteful number, since it uses less digits than its factorization.

197801297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 63504, while the sum is 44.

The square root of 197801297 is about 14064.1849035058. The cubic root of 197801297 is about 582.6526307099.

The spelling of 197801297 in words is "one hundred ninety-seven million, eight hundred one thousand, two hundred ninety-seven".