516870987 has 8 divisors (see below), whose sum is σ = 689319936. Its totient is φ = 344501352.

The previous prime is 516870979. The next prime is 516870989. The reversal of 516870987 is 789078615.

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

It is not a de Polignac number, because 516870987 - 2³ = 516870979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516870989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2443 + ... + 32244.

It is an arithmetic number, because the mean of its divisors is an integer number (86164992).

Almost surely, 2^516870987 is an apocalyptic number.

516870987 is a deficient number, since it is larger than the sum of its proper divisors (172448949).

516870987 is a wasteful number, since it uses less digits than its factorization.

516870987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39657.

The product of its (nonzero) digits is 846720, while the sum is 51.

The square root of 516870987 is about 22734.7968321690. The cubic root of 516870987 is about 802.5289693641.

The spelling of 516870987 in words is "five hundred sixteen million, eight hundred seventy thousand, nine hundred eighty-seven".