9712189 has 2 divisors, whose sum is σ = 9712190. Its totient is φ = 9712188.

The previous prime is 9712147. The next prime is 9712201. The reversal of 9712189 is 9812179.

9712189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7868025 + 1844164 = 2805^2 + 1358^2 .

It is a cyclic number.

It is not a de Polignac number, because 9712189 - 2¹³ = 9703997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9712289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4856094 + 4856095.

It is an arithmetic number, because the mean of its divisors is an integer number (4856095).

Almost surely, 2^9712189 is an apocalyptic number.

It is an amenable number.

9712189 is a deficient number, since it is larger than the sum of its proper divisors (1).

9712189 is an equidigital number, since it uses as much as digits as its factorization.

9712189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 37.

The square root of 9712189 is about 3116.4385121481. The cubic root of 9712189 is about 213.3564165018.

It can be divided in two parts, 971 and 2189, that added together give a triangular number (3160 = T₇₉).

The spelling of 9712189 in words is "nine million, seven hundred twelve thousand, one hundred eighty-nine".