497939 has 4 divisors (see below), whose sum is σ = 536256. Its totient is φ = 459624.

The previous prime is 497929. The next prime is 497957. The reversal of 497939 is 939794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 497896 and 497905.

It is not an unprimeable number, because it can be changed into a prime (497929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19139 + ... + 19164.

It is an arithmetic number, because the mean of its divisors is an integer number (134064).

2⁴⁹⁷⁹³⁹ is an apocalyptic number.

497939 is a deficient number, since it is larger than the sum of its proper divisors (38317).

497939 is a wasteful number, since it uses less digits than its factorization.

497939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38316.

The product of its digits is 61236, while the sum is 41.

The square root of 497939 is about 705.6479292112. The cubic root of 497939 is about 79.2608479612.

The spelling of 497939 in words is "four hundred ninety-seven thousand, nine hundred thirty-nine".