492751 has 4 divisors (see below), whose sum is σ = 563152. Its totient is φ = 422352.

The previous prime is 492731. The next prime is 492757. The reversal of 492751 is 157294.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 492751 - 2⁵ = 492719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492757) 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, 35190 + ... + 35203.

It is an arithmetic number, because the mean of its divisors is an integer number (140788).

2⁴⁹²⁷⁵¹ is an apocalyptic number.

492751 is a deficient number, since it is larger than the sum of its proper divisors (70401).

492751 is an equidigital number, since it uses as much as digits as its factorization.

492751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70400.

The product of its digits is 2520, while the sum is 28.

The square root of 492751 is about 701.9622496972. The cubic root of 492751 is about 78.9846148537.

The spelling of 492751 in words is "four hundred ninety-two thousand, seven hundred fifty-one".