489843023 has 4 divisors (see below), whose sum is σ = 491705808. Its totient is φ = 487980240.

The previous prime is 489843017. The next prime is 489843043. The reversal of 489843023 is 320348984.

It is a happy number.

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 489843023 - 2⁴ = 489843007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489843043) 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, 930998 + ... + 931523.

It is an arithmetic number, because the mean of its divisors is an integer number (122926452).

Almost surely, 2^489843023 is an apocalyptic number.

489843023 is a deficient number, since it is larger than the sum of its proper divisors (1862785).

489843023 is a wasteful number, since it uses less digits than its factorization.

489843023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862784.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 489843023 is about 22132.3975881512. The cubic root of 489843023 is about 788.2893192170.

The spelling of 489843023 in words is "four hundred eighty-nine million, eight hundred forty-three thousand, twenty-three".