7873984189 has 2 divisors, whose sum is σ = 7873984190. Its totient is φ = 7873984188.

The previous prime is 7873984133. The next prime is 7873984201. The reversal of 7873984189 is 9814893787.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7109019225 + 764964964 = 84315^2 + 27658^2 .

It is a cyclic number.

It is not a de Polignac number, because 7873984189 - 2¹¹ = 7873982141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7873984189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7873981189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936992094 + 3936992095.

It is an arithmetic number, because the mean of its divisors is an integer number (3936992095).

Almost surely, 2^7873984189 is an apocalyptic number.

It is an amenable number.

7873984189 is a deficient number, since it is larger than the sum of its proper divisors (1).

7873984189 is an equidigital number, since it uses as much as digits as its factorization.

7873984189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24385536, while the sum is 64.

The square root of 7873984189 is about 88735.4731153218. The cubic root of 7873984189 is about 1989.4430559294.

The spelling of 7873984189 in words is "seven billion, eight hundred seventy-three million, nine hundred eighty-four thousand, one hundred eighty-nine".