490997 has 8 divisors (see below), whose sum is σ = 534240. Its totient is φ = 448560.

The previous prime is 490993. The next prime is 491003. The reversal of 490997 is 799094.

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

It is a cyclic number.

It is not a de Polignac number, because 490997 - 2² = 490993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 490997.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 490997.

It is not an unprimeable number, because it can be changed into a prime (490991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2222 + ... + 2432.

It is an arithmetic number, because the mean of its divisors is an integer number (66780).

2⁴⁹⁰⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

490997 is a deficient number, since it is larger than the sum of its proper divisors (43243).

490997 is a wasteful number, since it uses less digits than its factorization.

490997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 490997 is about 700.7117809770. The cubic root of 490997 is about 78.8907853659.

The spelling of 490997 in words is "four hundred ninety thousand, nine hundred ninety-seven".