497999 has 2 divisors, whose sum is σ = 498000. Its totient is φ = 497998.

The previous prime is 497993. The next prime is 498013. The reversal of 497999 is 999794.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497999 is a prime.

It is a Chen prime.

It is an Ulam number.

497999 is a modest number, since divided by 999 gives 497 as remainder.

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 497999.

It is not a weakly prime, because it can be changed into another prime (497993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248999 + 249000.

It is an arithmetic number, because the mean of its divisors is an integer number (249000).

2⁴⁹⁷⁹⁹⁹ is an apocalyptic number.

497999 is a deficient number, since it is larger than the sum of its proper divisors (1).

497999 is an equidigital number, since it uses as much as digits as its factorization.

497999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 47.

The square root of 497999 is about 705.6904420495. The cubic root of 497999 is about 79.2640313899.

The spelling of 497999 in words is "four hundred ninety-seven thousand, nine hundred ninety-nine".