9490597189 has 2 divisors, whose sum is σ = 9490597190. Its totient is φ = 9490597188.

The previous prime is 9490597183. The next prime is 9490597211. The reversal of 9490597189 is 9817950949.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8604046564 + 886550625 = 92758^2 + 29775^2 .

It is a cyclic number.

It is not a de Polignac number, because 9490597189 - 2⁹ = 9490596677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9490597183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4745298594 + 4745298595.

It is an arithmetic number, because the mean of its divisors is an integer number (4745298595).

Almost surely, 2^9490597189 is an apocalyptic number.

It is an amenable number.

9490597189 is a deficient number, since it is larger than the sum of its proper divisors (1).

9490597189 is an equidigital number, since it uses as much as digits as its factorization.

9490597189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 61.

The square root of 9490597189 is about 97419.6961040220. The cubic root of 9490597189 is about 2117.2128132464.

The spelling of 9490597189 in words is "nine billion, four hundred ninety million, five hundred ninety-seven thousand, one hundred eighty-nine".