516979994 has 8 divisors (see below), whose sum is σ = 800485248. Its totient is φ = 250151580.

The previous prime is 516979951. The next prime is 516979999. The reversal of 516979994 is 499979615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (516979999) 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, 4169132 + ... + 4169255.

It is an arithmetic number, because the mean of its divisors is an integer number (100060656).

Almost surely, 2^516979994 is an apocalyptic number.

516979994 is a deficient number, since it is larger than the sum of its proper divisors (283505254).

516979994 is a wasteful number, since it uses less digits than its factorization.

516979994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8338420.

The product of its digits is 5511240, while the sum is 59.

The square root of 516979994 is about 22737.1940661111. The cubic root of 516979994 is about 802.5853826202.

The spelling of 516979994 in words is "five hundred sixteen million, nine hundred seventy-nine thousand, nine hundred ninety-four".