492787 has 4 divisors (see below), whose sum is σ = 495720. Its totient is φ = 489856.

The previous prime is 492781. The next prime is 492799. The reversal of 492787 is 787294.

It is a happy number.

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 492787 - 2⁷ = 492659 is a prime.

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

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (492781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198 + ... + 1555.

It is an arithmetic number, because the mean of its divisors is an integer number (123930).

2⁴⁹²⁷⁸⁷ is an apocalyptic number.

492787 is a deficient number, since it is larger than the sum of its proper divisors (2933).

492787 is a wasteful number, since it uses less digits than its factorization.

492787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932.

The product of its digits is 28224, while the sum is 37.

The square root of 492787 is about 701.9878916335. The cubic root of 492787 is about 78.9865383247.

The spelling of 492787 in words is "four hundred ninety-two thousand, seven hundred eighty-seven".