975397189 has 12 divisors (see below), whose sum is σ = 1071975936. Its totient is φ = 886918032.

The previous prime is 975397187. The next prime is 975397193. The reversal of 975397189 is 981793579.

It is a happy number.

It is not a de Polignac number, because 975397189 - 2¹ = 975397187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975397187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31749 + ... + 54394.

It is an arithmetic number, because the mean of its divisors is an integer number (89331328).

Almost surely, 2^975397189 is an apocalyptic number.

It is an amenable number.

975397189 is a deficient number, since it is larger than the sum of its proper divisors (96578747).

975397189 is a wasteful number, since it uses less digits than its factorization.

975397189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86236 (or 86223 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 58.

The square root of 975397189 is about 31231.3494585168. The cubic root of 975397189 is about 991.7308730156.

The spelling of 975397189 in words is "nine hundred seventy-five million, three hundred ninety-seven thousand, one hundred eighty-nine".