497889 has 18 divisors (see below), whose sum is σ = 837330. Its totient is φ = 284256.

The previous prime is 497873. The next prime is 497899. The reversal of 497889 is 988794.

497889 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in only one way, i.e., 321489 + 176400 = 567^2 + 420^2 .

It is not a de Polignac number, because 497889 - 2⁴ = 497873 is a prime.

497889 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 497889.

It is not an unprimeable number, because it can be changed into a prime (497839) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 124 + ... + 1005.

2⁴⁹⁷⁸⁸⁹ is an apocalyptic number.

497889 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

497889 is a deficient number, since it is larger than the sum of its proper divisors (339441).

497889 is a wasteful number, since it uses less digits than its factorization.

497889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1139 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 497889 is about 705.6124998893. The cubic root of 497889 is about 79.2581949087.

The spelling of 497889 in words is "four hundred ninety-seven thousand, eight hundred eighty-nine".