516939 has 4 divisors (see below), whose sum is σ = 689256. Its totient is φ = 344624.

The previous prime is 516931. The next prime is 516947. The reversal of 516939 is 939615.

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

It is an interprime number because it is at equal distance from previous prime (516931) and next prime (516947).

It is a cyclic number.

It is not a de Polignac number, because 516939 - 2³ = 516931 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (516931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86154 + ... + 86159.

It is an arithmetic number, because the mean of its divisors is an integer number (172314).

2⁵¹⁶⁹³⁹ is an apocalyptic number.

516939 is a deficient number, since it is larger than the sum of its proper divisors (172317).

516939 is a wasteful number, since it uses less digits than its factorization.

516939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172316.

The product of its digits is 7290, while the sum is 33.

The square root of 516939 is about 718.9847008108. The cubic root of 516939 is about 80.2564168353.

The spelling of 516939 in words is "five hundred sixteen thousand, nine hundred thirty-nine".