492589 has 4 divisors (see below), whose sum is σ = 495360. Its totient is φ = 489820.

The previous prime is 492587. The next prime is 492601. The reversal of 492589 is 985294.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 985294 = 2 ⋅492647.

It is a cyclic number.

It is not a de Polignac number, because 492589 - 2¹ = 492587 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492587) 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, 1099 + ... + 1480.

It is an arithmetic number, because the mean of its divisors is an integer number (123840).

2⁴⁹²⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

492589 is a deficient number, since it is larger than the sum of its proper divisors (2771).

492589 is a wasteful number, since it uses less digits than its factorization.

492589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770.

The product of its digits is 25920, while the sum is 37.

The square root of 492589 is about 701.8468493909. The cubic root of 492589 is about 78.9759580743.

It can be divided in two parts, 492 and 589, that added together give a triangular number (1081 = T₄₆).

The spelling of 492589 in words is "four hundred ninety-two thousand, five hundred eighty-nine".