492691 has 4 divisors (see below), whose sum is σ = 496584. Its totient is φ = 488800.

The previous prime is 492673. The next prime is 492707. The reversal of 492691 is 196294.

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 492691 - 2⁵ = 492659 is a prime.

It is a Duffinian number.

492691 is a lucky number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750 + ... + 2011.

It is an arithmetic number, because the mean of its divisors is an integer number (124146).

2⁴⁹²⁶⁹¹ is an apocalyptic number.

492691 is a deficient number, since it is larger than the sum of its proper divisors (3893).

492691 is a wasteful number, since it uses less digits than its factorization.

492691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892.

The product of its digits is 3888, while the sum is 31.

The square root of 492691 is about 701.9195110552. The cubic root of 492691 is about 78.9814088603.

The spelling of 492691 in words is "four hundred ninety-two thousand, six hundred ninety-one".