518864 has 10 divisors (see below), whose sum is σ = 1005330. Its totient is φ = 259424.

The previous prime is 518863. The next prime is 518867. The reversal of 518864 is 468815.

It can be written as a sum of positive squares in only one way, i.e., 478864 + 40000 = 692^2 + 200^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 518864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16199 + ... + 16230.

It is an arithmetic number, because the mean of its divisors is an integer number (100533).

2⁵¹⁸⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

518864 is a deficient number, since it is larger than the sum of its proper divisors (486466).

518864 is a wasteful number, since it uses less digits than its factorization.

518864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32437 (or 32431 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 518864 is about 720.3221501523. The cubic root of 518864 is about 80.3559142152.

The spelling of 518864 in words is "five hundred eighteen thousand, eight hundred sixty-four".