680810212 has 24 divisors (see below), whose sum is σ = 1276825536. Its totient is φ = 316803168.

The previous prime is 680810173. The next prime is 680810269. The reversal of 680810212 is 212018086.

680810212 is a modest number, since divided by 10212 gives 6808 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96598 + ... + 103405.

It is an arithmetic number, because the mean of its divisors is an integer number (53201064).

Almost surely, 2^680810212 is an apocalyptic number.

It is an amenable number.

680810212 is a deficient number, since it is larger than the sum of its proper divisors (596015324).

680810212 is a wasteful number, since it uses less digits than its factorization.

680810212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200067 (or 200065 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 680810212 is about 26092.3401020299. The cubic root of 680810212 is about 879.7150472022.

Adding to 680810212 its reverse (212018086), we get a palindrome (892828298).

It can be divided in two parts, 6808 and 10212, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 680810212 in words is "six hundred eighty million, eight hundred ten thousand, two hundred twelve".