489623 has 4 divisors (see below), whose sum is σ = 491208. Its totient is φ = 488040.

The previous prime is 489613. The next prime is 489631. The reversal of 489623 is 326984.

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 489623 - 2⁸ = 489367 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 489623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489613) 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, 161 + ... + 1002.

It is an arithmetic number, because the mean of its divisors is an integer number (122802).

2⁴⁸⁹⁶²³ is an apocalyptic number.

489623 is a deficient number, since it is larger than the sum of its proper divisors (1585).

489623 is a wasteful number, since it uses less digits than its factorization.

489623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584.

The product of its digits is 10368, while the sum is 32.

The square root of 489623 is about 699.7306624695. The cubic root of 489623 is about 78.8171276125.

The spelling of 489623 in words is "four hundred eighty-nine thousand, six hundred twenty-three".