516947847 has 36 divisors (see below), whose sum is σ = 771942312. Its totient is φ = 307569600.

The previous prime is 516947843. The next prime is 516947857. The reversal of 516947847 is 748749615.

It is not a de Polignac number, because 516947847 - 2² = 516947843 is a prime.

Its product of digits (1693440) is a multiple of the sum of its prime factors (1152).

It is a self number, because there is not a number n which added to its sum of digits gives 516947847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516947843) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 486697 + ... + 487757.

It is an arithmetic number, because the mean of its divisors is an integer number (21442842).

Almost surely, 2^516947847 is an apocalyptic number.

516947847 is a deficient number, since it is larger than the sum of its proper divisors (254994465).

516947847 is a wasteful number, since it uses less digits than its factorization.

516947847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1108 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 516947847 is about 22736.4871297217. The cubic root of 516947847 is about 802.5687467430.

The spelling of 516947847 in words is "five hundred sixteen million, nine hundred forty-seven thousand, eight hundred forty-seven".