497858 has 16 divisors (see below), whose sum is σ = 794880. Its totient is φ = 233376.

The previous prime is 497851. The next prime is 497867. The reversal of 497858 is 858794.

It is not an unprimeable number, because it can be changed into a prime (497851) by changing a digit.

497858 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3566 + ... + 3702.

It is an arithmetic number, because the mean of its divisors is an integer number (49680).

2⁴⁹⁷⁸⁵⁸ is an apocalyptic number.

497858 is a deficient number, since it is larger than the sum of its proper divisors (297022).

497858 is a wasteful number, since it uses less digits than its factorization.

497858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its digits is 80640, while the sum is 41.

The square root of 497858 is about 705.5905328163. The cubic root of 497858 is about 79.2565499269.

It can be divided in two parts, 497 and 858, that multiplied together give a triangular number (426426 = T₉₂₃).

The spelling of 497858 in words is "four hundred ninety-seven thousand, eight hundred fifty-eight".