196871321 has 8 divisors (see below), whose sum is σ = 199254144. Its totient is φ = 194497200.

The previous prime is 196871303. The next prime is 196871357. The reversal of 196871321 is 123178691.

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 196871321 - 2¹⁸ = 196609177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196871371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50960 + ... + 54686.

It is an arithmetic number, because the mean of its divisors is an integer number (24906768).

Almost surely, 2^196871321 is an apocalyptic number.

It is an amenable number.

196871321 is a deficient number, since it is larger than the sum of its proper divisors (2382823).

196871321 is a wasteful number, since it uses less digits than its factorization.

196871321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4351.

The product of its digits is 18144, while the sum is 38.

The square root of 196871321 is about 14031.0840992419. The cubic root of 196871321 is about 581.7380691741.

The spelling of 196871321 in words is "one hundred ninety-six million, eight hundred seventy-one thousand, three hundred twenty-one".