489923 has 16 divisors (see below), whose sum is σ = 622080. Its totient is φ = 375936.

The previous prime is 489913. The next prime is 489941. The reversal of 489923 is 329984.

It is a cyclic number.

It is not a de Polignac number, because 489923 - 2¹² = 485827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2648 + ... + 2826.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2⁴⁸⁹⁹²³ is an apocalyptic number.

489923 is a deficient number, since it is larger than the sum of its proper divisors (132157).

489923 is a wasteful number, since it uses less digits than its factorization.

489923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226.

The product of its digits is 15552, while the sum is 35.

The square root of 489923 is about 699.9449978391. The cubic root of 489923 is about 78.8332218392.

The spelling of 489923 in words is "four hundred eighty-nine thousand, nine hundred twenty-three".