497021 has 16 divisors (see below), whose sum is σ = 620160. Its totient is φ = 388800.

The previous prime is 497017. The next prime is 497041. The reversal of 497021 is 120794.

It is a cyclic number.

It is not a de Polignac number, because 497021 - 2² = 497017 is a prime.

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 497021.

It is not an unprimeable number, because it can be changed into a prime (497011) 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 15 ways as a sum of consecutive naturals, for example, 4871 + ... + 4971.

It is an arithmetic number, because the mean of its divisors is an integer number (38760).

2⁴⁹⁷⁰²¹ is an apocalyptic number.

It is an amenable number.

497021 is a deficient number, since it is larger than the sum of its proper divisors (123139).

497021 is a wasteful number, since it uses less digits than its factorization.

497021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 497021 is about 704.9971631149. The cubic root of 497021 is about 79.2121095826.

The spelling of 497021 in words is "four hundred ninety-seven thousand, twenty-one".