518473 has 2 divisors, whose sum is σ = 518474. Its totient is φ = 518472.

The previous prime is 518471. The next prime is 518509. The reversal of 518473 is 374815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466489 + 51984 = 683^2 + 228^2 .

It is a cyclic number.

It is not a de Polignac number, because 518473 - 2¹ = 518471 is a prime.

Together with 518471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (518471) 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, 259236 + 259237.

It is an arithmetic number, because the mean of its divisors is an integer number (259237).

2⁵¹⁸⁴⁷³ is an apocalyptic number.

It is an amenable number.

518473 is a deficient number, since it is larger than the sum of its proper divisors (1).

518473 is an equidigital number, since it uses as much as digits as its factorization.

518473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 518473 is about 720.0506926599. The cubic root of 518473 is about 80.3357245586.

The spelling of 518473 in words is "five hundred eighteen thousand, four hundred seventy-three".