497666 has 8 divisors (see below), whose sum is σ = 803964. Its totient is φ = 229680.

The previous prime is 497663. The next prime is 497671. The reversal of 497666 is 666794.

497666 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 2 ways, for example, as 483025 + 14641 = 695^2 + 121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 497666.

It is not an unprimeable number, because it can be changed into a prime (497663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9545 + ... + 9596.

2⁴⁹⁷⁶⁶⁶ is an apocalyptic number.

497666 is a deficient number, since it is larger than the sum of its proper divisors (306298).

497666 is a wasteful number, since it uses less digits than its factorization.

497666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19156.

The product of its digits is 54432, while the sum is 38.

The square root of 497666 is about 705.4544634489. The cubic root of 497666 is about 79.2463601310.

The spelling of 497666 in words is "four hundred ninety-seven thousand, six hundred sixty-six".