504633649 has 8 divisors (see below), whose sum is σ = 549559080. Its totient is φ = 460580736.

The previous prime is 504633643. The next prime is 504633653. The reversal of 504633649 is 946336405.

It can be written as a sum of positive squares in 4 ways, for example, as 2560000 + 502073649 = 1600^2 + 22407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 504633649 - 2⁹ = 504633137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504633643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216922 + ... + 219235.

It is an arithmetic number, because the mean of its divisors is an integer number (68694885).

Almost surely, 2^504633649 is an apocalyptic number.

It is an amenable number.

504633649 is a deficient number, since it is larger than the sum of its proper divisors (44925431).

504633649 is a wasteful number, since it uses less digits than its factorization.

504633649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436259.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 504633649 is about 22464.0523726241. The cubic root of 504633649 is about 796.1448105900.

The spelling of 504633649 in words is "five hundred four million, six hundred thirty-three thousand, six hundred forty-nine".