497805 has 32 divisors (see below), whose sum is σ = 995328. Its totient is φ = 206400.

The previous prime is 497801. The next prime is 497813. The reversal of 497805 is 508794.

It is not a de Polignac number, because 497805 - 2² = 497801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940 + ... + 1370.

It is an arithmetic number, because the mean of its divisors is an integer number (31104).

2⁴⁹⁷⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

497805 is a deficient number, since it is larger than the sum of its proper divisors (497523).

497805 is a wasteful number, since it uses less digits than its factorization.

497805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 497805 is about 705.5529746235. The cubic root of 497805 is about 79.2537373804.

The spelling of 497805 in words is "four hundred ninety-seven thousand, eight hundred five".