516840684 has 24 divisors (see below), whose sum is σ = 1206464448. Its totient is φ = 172208400.

The previous prime is 516840677. The next prime is 516840691. The reversal of 516840684 is 486048615.

It is an interprime number because it is at equal distance from previous prime (516840677) and next prime (516840691).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26659 + ... + 41765.

It is an arithmetic number, because the mean of its divisors is an integer number (50269352).

Almost surely, 2^516840684 is an apocalyptic number.

It is an amenable number.

516840684 is an abundant number, since it is smaller than the sum of its proper divisors (689623764).

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

516840684 is a wasteful number, since it uses less digits than its factorization.

516840684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17965 (or 17963 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 516840684 is about 22734.1303770344. The cubic root of 516840684 is about 802.5132855595.

The spelling of 516840684 in words is "five hundred sixteen million, eight hundred forty thousand, six hundred eighty-four".