497855 has 4 divisors (see below), whose sum is σ = 597432. Its totient is φ = 398280.

The previous prime is 497851. The next prime is 497867. The reversal of 497855 is 558794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 558794 = 2 ⋅279397.

It is not a de Polignac number, because 497855 - 2² = 497851 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 (497851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49781 + ... + 49790.

It is an arithmetic number, because the mean of its divisors is an integer number (149358).

2⁴⁹⁷⁸⁵⁵ is an apocalyptic number.

497855 is a deficient number, since it is larger than the sum of its proper divisors (99577).

497855 is an equidigital number, since it uses as much as digits as its factorization.

497855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99576.

The product of its digits is 50400, while the sum is 38.

The square root of 497855 is about 705.5884069342. The cubic root of 497855 is about 79.2563907314.

The spelling of 497855 in words is "four hundred ninety-seven thousand, eight hundred fifty-five".