197016321 has 8 divisors (see below), whose sum is σ = 274109760. Its totient is φ = 125633552.

The previous prime is 197016319. The next prime is 197016341. The reversal of 197016321 is 123610791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197016321 - 2¹ = 197016319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (197016341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1427586 + ... + 1427723.

It is an arithmetic number, because the mean of its divisors is an integer number (34263720).

Almost surely, 2^197016321 is an apocalyptic number.

It is an amenable number.

197016321 is a deficient number, since it is larger than the sum of its proper divisors (77093439).

197016321 is a wasteful number, since it uses less digits than its factorization.

197016321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855335.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 197016321 is about 14036.2502471280. The cubic root of 197016321 is about 581.8808550288.

The spelling of 197016321 in words is "one hundred ninety-seven million, sixteen thousand, three hundred twenty-one".