489856764 has 24 divisors (see below), whose sum is σ = 1173892048. Its totient is φ = 158872320.

The previous prime is 489856753. The next prime is 489856769. The reversal of 489856764 is 467658984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489856769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551197 + ... + 552084.

Almost surely, 2^489856764 is an apocalyptic number.

It is an amenable number.

489856764 is an abundant number, since it is smaller than the sum of its proper divisors (684035284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489856764 is a wasteful number, since it uses less digits than its factorization.

489856764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103325 (or 1103323 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The square root of 489856764 is about 22132.7080132550. The cubic root of 489856764 is about 788.2966901378.

The spelling of 489856764 in words is "four hundred eighty-nine million, eight hundred fifty-six thousand, seven hundred sixty-four".