497566 has 4 divisors (see below), whose sum is σ = 746352. Its totient is φ = 248782.

The previous prime is 497561. The next prime is 497579. The reversal of 497566 is 665794.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497561) by changing a digit.

497566 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 124390 + ... + 124393.

It is an arithmetic number, because the mean of its divisors is an integer number (186588).

2⁴⁹⁷⁵⁶⁶ is an apocalyptic number.

497566 is a deficient number, since it is larger than the sum of its proper divisors (248786).

497566 is a wasteful number, since it uses less digits than its factorization.

497566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248785.

The product of its digits is 45360, while the sum is 37.

The square root of 497566 is about 705.3835835912. The cubic root of 497566 is about 79.2410519076.

It can be divided in two parts, 4975 and 66, that added together give a square (5041 = 71²).

The spelling of 497566 in words is "four hundred ninety-seven thousand, five hundred sixty-six".