504739 has 4 divisors (see below), whose sum is σ = 511920. Its totient is φ = 497560.

The previous prime is 504727. The next prime is 504767. The reversal of 504739 is 937405.

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-504739 is a prime.

It is a super-2 number, since 2×504739² = 509522916242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504799) 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, 3484 + ... + 3625.

It is an arithmetic number, because the mean of its divisors is an integer number (127980).

2⁵⁰⁴⁷³⁹ is an apocalyptic number.

504739 is a deficient number, since it is larger than the sum of its proper divisors (7181).

504739 is an equidigital number, since it uses as much as digits as its factorization.

504739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7180.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 504739 is about 710.4498574847. The cubic root of 504739 is about 79.6200209734.

The spelling of 504739 in words is "five hundred four thousand, seven hundred thirty-nine".