492609 has 16 divisors (see below), whose sum is σ = 749952. Its totient is φ = 284928.

The previous prime is 492601. The next prime is 492617. The reversal of 492609 is 906294.

It is an interprime number because it is at equal distance from previous prime (492601) and next prime (492617).

It is not a de Polignac number, because 492609 - 2³ = 492601 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (492601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292 + ... + 1034.

It is an arithmetic number, because the mean of its divisors is an integer number (46872).

2⁴⁹²⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

492609 is a deficient number, since it is larger than the sum of its proper divisors (257343).

492609 is a wasteful number, since it uses less digits than its factorization.

492609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 492609 is about 701.8610973690. The cubic root of 492609 is about 78.9770269152.

The spelling of 492609 in words is "four hundred ninety-two thousand, six hundred nine".