492549 has 4 divisors (see below), whose sum is σ = 656736. Its totient is φ = 328364.

The previous prime is 492523. The next prime is 492551. The reversal of 492549 is 945294.

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.

It is a cyclic number.

It is not a de Polignac number, because 492549 - 2⁷ = 492421 is a prime.

It is a D-number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490549) 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 3 ways as a sum of consecutive naturals, for example, 82089 + ... + 82094.

It is an arithmetic number, because the mean of its divisors is an integer number (164184).

2⁴⁹²⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

492549 is a deficient number, since it is larger than the sum of its proper divisors (164187).

492549 is a wasteful number, since it uses less digits than its factorization.

492549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164186.

The product of its digits is 12960, while the sum is 33.

The square root of 492549 is about 701.8183525671. The cubic root of 492549 is about 78.9738203057.

The spelling of 492549 in words is "four hundred ninety-two thousand, five hundred forty-nine".