9794396189 has 2 divisors, whose sum is σ = 9794396190. Its totient is φ = 9794396188.

The previous prime is 9794396149. The next prime is 9794396239. The reversal of 9794396189 is 9816934979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9776265625 + 18130564 = 98875^2 + 4258^2 .

It is a cyclic number.

It is not a de Polignac number, because 9794396189 - 2¹² = 9794392093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9794396149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4897198094 + 4897198095.

It is an arithmetic number, because the mean of its divisors is an integer number (4897198095).

Almost surely, 2^9794396189 is an apocalyptic number.

It is an amenable number.

9794396189 is a deficient number, since it is larger than the sum of its proper divisors (1).

9794396189 is an equidigital number, since it uses as much as digits as its factorization.

9794396189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26453952, while the sum is 65.

The square root of 9794396189 is about 98966.6417991436. The cubic root of 9794396189 is about 2139.5669916845.

The spelling of 9794396189 in words is "nine billion, seven hundred ninety-four million, three hundred ninety-six thousand, one hundred eighty-nine".