504749 has 6 divisors (see below), whose sum is σ = 587214. Its totient is φ = 432600.

The previous prime is 504727. The next prime is 504767. The reversal of 504749 is 947405.

It can be written as a sum of positive squares in only one way, i.e., 499849 + 4900 = 707^2 + 70^2 .

It is a de Polignac number, because none of the positive numbers 2^k-504749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5102 + ... + 5199.

It is an arithmetic number, because the mean of its divisors is an integer number (97869).

2⁵⁰⁴⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

504749 is a deficient number, since it is larger than the sum of its proper divisors (82465).

504749 is a wasteful number, since it uses less digits than its factorization.

504749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10315 (or 10308 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 504749 is about 710.4568952442. The cubic root of 504749 is about 79.6205467863.

The spelling of 504749 in words is "five hundred four thousand, seven hundred forty-nine".