197326897 has 4 divisors (see below), whose sum is σ = 201050100. Its totient is φ = 193603696.

The previous prime is 197326879. The next prime is 197326907. The reversal of 197326897 is 798623791.

197326897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798623791 = 7 ⋅114089113.

It can be written as a sum of positive squares in 2 ways, for example, as 127035441 + 70291456 = 11271^2 + 8384^2 .

It is a cyclic number.

It is not a de Polignac number, because 197326897 - 2¹⁹ = 196802609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197326807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1861522 + ... + 1861627.

It is an arithmetic number, because the mean of its divisors is an integer number (50262525).

Almost surely, 2^197326897 is an apocalyptic number.

It is an amenable number.

197326897 is a deficient number, since it is larger than the sum of its proper divisors (3723203).

197326897 is an equidigital number, since it uses as much as digits as its factorization.

197326897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723202.

The product of its digits is 1143072, while the sum is 52.

The square root of 197326897 is about 14047.3092441222. The cubic root of 197326897 is about 582.1864529768.

The spelling of 197326897 in words is "one hundred ninety-seven million, three hundred twenty-six thousand, eight hundred ninety-seven".