492539 has 4 divisors (see below), whose sum is σ = 494640. Its totient is φ = 490440.

The previous prime is 492523. The next prime is 492551. The reversal of 492539 is 935294.

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 492539 - 2⁴ = 492523 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 492539.

It is not an unprimeable number, because it can be changed into a prime (492839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647 + ... + 1184.

It is an arithmetic number, because the mean of its divisors is an integer number (123660).

2⁴⁹²⁵³⁹ is an apocalyptic number.

492539 is a deficient number, since it is larger than the sum of its proper divisors (2101).

492539 is a wasteful number, since it uses less digits than its factorization.

492539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100.

The product of its digits is 9720, while the sum is 32.

The square root of 492539 is about 701.8112281803. The cubic root of 492539 is about 78.9732858455.

The spelling of 492539 in words is "four hundred ninety-two thousand, five hundred thirty-nine".