516004639 has 4 divisors (see below), whose sum is σ = 528590160. Its totient is φ = 503419120.

The previous prime is 516004589. The next prime is 516004651. The reversal of 516004639 is 936400615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936400615 = 5 ⋅187280123.

It is a cyclic number.

It is not a de Polignac number, because 516004639 - 2¹⁵ = 515971871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516004339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6292699 + ... + 6292780.

It is an arithmetic number, because the mean of its divisors is an integer number (132147540).

Almost surely, 2^516004639 is an apocalyptic number.

516004639 is a deficient number, since it is larger than the sum of its proper divisors (12585521).

516004639 is a wasteful number, since it uses less digits than its factorization.

516004639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12585520.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 516004639 is about 22715.7354932655. The cubic root of 516004639 is about 802.0803350476.

The spelling of 516004639 in words is "five hundred sixteen million, four thousand, six hundred thirty-nine".