516808986 has 8 divisors (see below), whose sum is σ = 1033617984. Its totient is φ = 172269660.

The previous prime is 516808973. The next prime is 516808991. The reversal of 516808986 is 689808615.

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

516808986 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43067410 + ... + 43067421.

It is an arithmetic number, because the mean of its divisors is an integer number (129202248).

Almost surely, 2^516808986 is an apocalyptic number.

516808986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516808986 is a wasteful number, since it uses less digits than its factorization.

516808986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86134836.

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 516808986 is about 22733.4332206994. The cubic root of 516808986 is about 802.4968790942.

The spelling of 516808986 in words is "five hundred sixteen million, eight hundred eight thousand, nine hundred eighty-six".