489197797 has 12 divisors (see below), whose sum is σ = 569345868. Its totient is φ = 418563200.

The previous prime is 489197749. The next prime is 489197801. The reversal of 489197797 is 797791984.

It can be written as a sum of positive squares in 2 ways, for example, as 202606756 + 286591041 = 14234^2 + 16929^2 .

It is not a de Polignac number, because 489197797 - 2⁷ = 489197669 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 (489197717) 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, 116854 + ... + 120967.

It is an arithmetic number, because the mean of its divisors is an integer number (47445489).

Almost surely, 2^489197797 is an apocalyptic number.

It is an amenable number.

489197797 is a deficient number, since it is larger than the sum of its proper divisors (80148071).

489197797 is a wasteful number, since it uses less digits than its factorization.

489197797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237860 (or 237849 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 61.

The square root of 489197797 is about 22117.8162800942. The cubic root of 489197797 is about 787.9430530149.

The spelling of 489197797 in words is "four hundred eighty-nine million, one hundred ninety-seven thousand, seven hundred ninety-seven".