489543915 has 32 divisors (see below), whose sum is σ = 896394240. Its totient is φ = 223484544.

The previous prime is 489543907. The next prime is 489543919. The reversal of 489543915 is 519345984.

It is not a de Polignac number, because 489543915 - 2³ = 489543907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489543919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85317 + ... + 90873.

It is an arithmetic number, because the mean of its divisors is an integer number (28012320).

Almost surely, 2^489543915 is an apocalyptic number.

489543915 is a deficient number, since it is larger than the sum of its proper divisors (406850325).

489543915 is a wasteful number, since it uses less digits than its factorization.

489543915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6411.

The product of its digits is 777600, while the sum is 48.

The square root of 489543915 is about 22125.6393127973. The cubic root of 489543915 is about 788.1288381117.

The spelling of 489543915 in words is "four hundred eighty-nine million, five hundred forty-three thousand, nine hundred fifteen".