492591 has 24 divisors (see below), whose sum is σ = 766080. Its totient is φ = 280720.

The previous prime is 492587. The next prime is 492601. The reversal of 492591 is 195294.

492591 = 139² + 140² + ... + 160².

It is a happy number.

It is not a de Polignac number, because 492591 - 2² = 492587 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8320 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (31920).

2⁴⁹²⁵⁹¹ is an apocalyptic number.

492591 is a deficient number, since it is larger than the sum of its proper divisors (273489).

492591 is a wasteful number, since it uses less digits than its factorization.

492591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 96 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 492591 is about 701.8482742018. The cubic root of 492591 is about 78.9760649597.

The spelling of 492591 in words is "four hundred ninety-two thousand, five hundred ninety-one".