489861223 has 4 divisors (see below), whose sum is σ = 490977520. Its totient is φ = 488744928.

The previous prime is 489861209. The next prime is 489861257. The reversal of 489861223 is 322168984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 489861223 - 2²⁵ = 456306791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 489861223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489861023) 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, 557490 + ... + 558367.

It is an arithmetic number, because the mean of its divisors is an integer number (122744380).

Almost surely, 2^489861223 is an apocalyptic number.

489861223 is a deficient number, since it is larger than the sum of its proper divisors (1116297).

489861223 is a wasteful number, since it uses less digits than its factorization.

489861223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116296.

The product of its digits is 165888, while the sum is 43.

The square root of 489861223 is about 22132.8087462934. The cubic root of 489861223 is about 788.2990819963.

The spelling of 489861223 in words is "four hundred eighty-nine million, eight hundred sixty-one thousand, two hundred twenty-three".