497789 has 6 divisors (see below), whose sum is σ = 520926. Its totient is φ = 475640.

The previous prime is 497773. The next prime is 497801. The reversal of 497789 is 987794.

It can be written as a sum of positive squares in only one way, i.e., 444889 + 52900 = 667^2 + 230^2 .

It is not a de Polignac number, because 497789 - 2⁴ = 497773 is a prime.

It is a Duffinian number.

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 497789.

It is not an unprimeable number, because it can be changed into a prime (497719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59 + ... + 999.

It is an arithmetic number, because the mean of its divisors is an integer number (86821).

2⁴⁹⁷⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

497789 is a deficient number, since it is larger than the sum of its proper divisors (23137).

497789 is an equidigital number, since it uses as much as digits as its factorization.

497789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 964 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 497789 is about 705.5416359082. The cubic root of 497789 is about 79.2528882706.

The spelling of 497789 in words is "four hundred ninety-seven thousand, seven hundred eighty-nine".