516706913 has 4 divisors (see below), whose sum is σ = 516934548. Its totient is φ = 516479280.

The previous prime is 516706901. The next prime is 516706933. The reversal of 516706913 is 319607615.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49801249 + 466905664 = 7057^2 + 21608^2 .

It is a cyclic number.

It is not a de Polignac number, because 516706913 - 2⁶ = 516706849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516706933) 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, 110378 + ... + 114963.

It is an arithmetic number, because the mean of its divisors is an integer number (129233637).

Almost surely, 2^516706913 is an apocalyptic number.

It is an amenable number.

516706913 is a deficient number, since it is larger than the sum of its proper divisors (227635).

516706913 is a wasteful number, since it uses less digits than its factorization.

516706913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227634.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 516706913 is about 22731.1881123711. The cubic root of 516706913 is about 802.4440429017. Note that the first 3 decimals are identical.

The spelling of 516706913 in words is "five hundred sixteen million, seven hundred six thousand, nine hundred thirteen".