196876321 has 2 divisors, whose sum is σ = 196876322. Its totient is φ = 196876320.

The previous prime is 196876307. The next prime is 196876357. The reversal of 196876321 is 123678691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183223296 + 13653025 = 13536^2 + 3695^2 .

It is a cyclic number.

It is not a de Polignac number, because 196876321 - 2²⁵ = 163321889 is a prime.

It is not a weakly prime, because it can be changed into another prime (196876391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98438160 + 98438161.

It is an arithmetic number, because the mean of its divisors is an integer number (98438161).

Almost surely, 2^196876321 is an apocalyptic number.

It is an amenable number.

196876321 is a deficient number, since it is larger than the sum of its proper divisors (1).

196876321 is an equidigital number, since it uses as much as digits as its factorization.

196876321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 196876321 is about 14031.2622739367. The cubic root of 196876321 is about 581.7429939912.

The spelling of 196876321 in words is "one hundred ninety-six million, eight hundred seventy-six thousand, three hundred twenty-one".