516923 has 4 divisors (see below), whose sum is σ = 563928. Its totient is φ = 469920.

The previous prime is 516911. The next prime is 516931. The reversal of 516923 is 329615.

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

It is not a de Polignac number, because 516923 - 2⁴ = 516907 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 516892 and 516901.

It is not an unprimeable number, because it can be changed into a prime (516973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23486 + ... + 23507.

It is an arithmetic number, because the mean of its divisors is an integer number (140982).

2⁵¹⁶⁹²³ is an apocalyptic number.

516923 is a deficient number, since it is larger than the sum of its proper divisors (47005).

516923 is a wasteful number, since it uses less digits than its factorization.

516923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47004.

The product of its digits is 1620, while the sum is 26.

The square root of 516923 is about 718.9735739233. The cubic root of 516923 is about 80.2555888099.

The spelling of 516923 in words is "five hundred sixteen thousand, nine hundred twenty-three".