492791 has 4 divisors (see below), whose sum is σ = 530712. Its totient is φ = 454872.

The previous prime is 492781. The next prime is 492799. The reversal of 492791 is 197294.

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 492791 - 2¹⁴ = 476407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492799) 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, 18941 + ... + 18966.

It is an arithmetic number, because the mean of its divisors is an integer number (132678).

2⁴⁹²⁷⁹¹ is an apocalyptic number.

492791 is a deficient number, since it is larger than the sum of its proper divisors (37921).

492791 is a wasteful number, since it uses less digits than its factorization.

492791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37920.

The product of its digits is 4536, while the sum is 32.

The square root of 492791 is about 701.9907406797. The cubic root of 492791 is about 78.9867520380.

The spelling of 492791 in words is "four hundred ninety-two thousand, seven hundred ninety-one".