489505893 has 32 divisors (see below), whose sum is σ = 692098560. Its totient is φ = 307353600.

The previous prime is 489505843. The next prime is 489505897. The reversal of 489505893 is 398505984.

It is a happy number.

It is not a de Polignac number, because 489505893 - 2⁶ = 489505829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489505897) 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, 526453 + ... + 527381.

It is an arithmetic number, because the mean of its divisors is an integer number (21628080).

Almost surely, 2^489505893 is an apocalyptic number.

It is an amenable number.

489505893 is a deficient number, since it is larger than the sum of its proper divisors (202592667).

489505893 is a wasteful number, since it uses less digits than its factorization.

489505893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 489505893 is about 22124.7800667035. The cubic root of 489505893 is about 788.1084333978.

Subtracting from 489505893 its reverse (398505984), we obtain a palindrome (90999909).

The spelling of 489505893 in words is "four hundred eighty-nine million, five hundred five thousand, eight hundred ninety-three".