489794931 has 48 divisors (see below), whose sum is σ = 754790400. Its totient is φ = 317284128.

The previous prime is 489794917. The next prime is 489794953. The reversal of 489794931 is 139497984.

489794931 is a `hidden beast` number, since 4 + 89 + 79 + 493 + 1 = 666.

It is not a de Polignac number, because 489794931 - 2¹⁰ = 489793907 is a prime.

It is a super-2 number, since 2×489794931² = 479798148866589522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489794911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1820665 + ... + 1820933.

It is an arithmetic number, because the mean of its divisors is an integer number (15724800).

Almost surely, 2^489794931 is an apocalyptic number.

489794931 is a deficient number, since it is larger than the sum of its proper divisors (264995469).

489794931 is a wasteful number, since it uses less digits than its factorization.

489794931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 458 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 489794931 is about 22131.3110998874. The cubic root of 489794931 is about 788.2635207137.

It can be divided in two parts, 48 and 9794931, that added together give a palindrome (9794979).

The spelling of 489794931 in words is "four hundred eighty-nine million, seven hundred ninety-four thousand, nine hundred thirty-one".