489889193 has 4 divisors (see below), whose sum is σ = 497201040. Its totient is φ = 482577348.

The previous prime is 489889189. The next prime is 489889201. The reversal of 489889193 is 391988984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 489889193 - 2² = 489889189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489889093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3655823 + ... + 3655956.

It is an arithmetic number, because the mean of its divisors is an integer number (124300260).

Almost surely, 2^489889193 is an apocalyptic number.

It is an amenable number.

489889193 is a deficient number, since it is larger than the sum of its proper divisors (7311847).

489889193 is an equidigital number, since it uses as much as digits as its factorization.

489889193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7311846.

The product of its digits is 4478976, while the sum is 59.

The square root of 489889193 is about 22133.4406046597. The cubic root of 489889193 is about 788.3140850929.

It can be divided in two parts, 4898891 and 93, that added together give a palindrome (4898984).

The spelling of 489889193 in words is "four hundred eighty-nine million, eight hundred eighty-nine thousand, one hundred ninety-three".