680800808 has 8 divisors (see below), whose sum is σ = 1276501530. Its totient is φ = 340400400.

The previous prime is 680800807. The next prime is 680800829. The reversal of 680800808 is 808008086.

It can be written as a sum of positive squares in only one way, i.e., 668843044 + 11957764 = 25862^2 + 3458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (680800807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42550043 + ... + 42550058.

Almost surely, 2^680800808 is an apocalyptic number.

It is an amenable number.

680800808 is a deficient number, since it is larger than the sum of its proper divisors (595700722).

680800808 is a wasteful number, since it uses less digits than its factorization.

680800808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85100107 (or 85100103 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 680800808 is about 26092.1598952636. The cubic root of 680800808 is about 879.7109966958.

The spelling of 680800808 in words is "six hundred eighty million, eight hundred thousand, eight hundred eight".