489684784 has 10 divisors (see below), whose sum is σ = 948764300. Its totient is φ = 244842384.

The previous prime is 489684781. The next prime is 489684787. The reversal of 489684784 is 487486984.

It is an interprime number because it is at equal distance from previous prime (489684781) and next prime (489684787).

It is a super-2 number, since 2×489684784² = 479582375362253312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489684781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15302634 + ... + 15302665.

It is an arithmetic number, because the mean of its divisors is an integer number (94876430).

Almost surely, 2^489684784 is an apocalyptic number.

It is an amenable number.

489684784 is a deficient number, since it is larger than the sum of its proper divisors (459079516).

489684784 is a wasteful number, since it uses less digits than its factorization.

489684784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30605307 (or 30605301 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 58.

The square root of 489684784 is about 22128.8224720612. The cubic root of 489684784 is about 788.2044270224.

The spelling of 489684784 in words is "four hundred eighty-nine million, six hundred eighty-four thousand, seven hundred eighty-four".