504412729 has 4 divisors (see below), whose sum is σ = 534084084. Its totient is φ = 474741376.

The previous prime is 504412693. The next prime is 504412739. The reversal of 504412729 is 927214405.

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

It can be written as a sum of positive squares in 2 ways, for example, as 208744704 + 295668025 = 14448^2 + 17195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504412729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 504412694 and 504412703.

It is not an unprimeable number, because it can be changed into a prime (504412739) 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, 14835652 + ... + 14835685.

It is an arithmetic number, because the mean of its divisors is an integer number (133521021).

Almost surely, 2^504412729 is an apocalyptic number.

It is an amenable number.

504412729 is a deficient number, since it is larger than the sum of its proper divisors (29671355).

504412729 is a wasteful number, since it uses less digits than its factorization.

504412729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29671354.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 504412729 is about 22459.1346449501. The cubic root of 504412729 is about 796.0286140947.

The spelling of 504412729 in words is "five hundred four million, four hundred twelve thousand, seven hundred twenty-nine".