489730923 has 36 divisors (see below), whose sum is σ = 783887104. Its totient is φ = 294386400.

The previous prime is 489730919. The next prime is 489730931. The reversal of 489730923 is 329037984.

It is a happy number.

It is not a de Polignac number, because 489730923 - 2² = 489730919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489730223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 136533 + ... + 140073.

Almost surely, 2^489730923 is an apocalyptic number.

489730923 is a deficient number, since it is larger than the sum of its proper divisors (294156181).

489730923 is a wasteful number, since it uses less digits than its factorization.

489730923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696 (or 3682 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 489730923 is about 22129.8649566598. The cubic root of 489730923 is about 788.2291816013.

The spelling of 489730923 in words is "four hundred eighty-nine million, seven hundred thirty thousand, nine hundred twenty-three".