516780983 has 16 divisors (see below), whose sum is σ = 534825984. Its totient is φ = 499150080.

The previous prime is 516780967. The next prime is 516781033. The reversal of 516780983 is 389087615.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 516780983 - 2⁴ = 516780967 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516780083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 851066 + ... + 851672.

It is an arithmetic number, because the mean of its divisors is an integer number (33426624).

Almost surely, 2^516780983 is an apocalyptic number.

516780983 is a deficient number, since it is larger than the sum of its proper divisors (18045001).

516780983 is a wasteful number, since it uses less digits than its factorization.

516780983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 516780983 is about 22732.8173133028. The cubic root of 516780983 is about 802.4823845540.

The spelling of 516780983 in words is "five hundred sixteen million, seven hundred eighty thousand, nine hundred eighty-three".