680998288 has 10 divisors (see below), whose sum is σ = 1319434214. Its totient is φ = 340499136.

The previous prime is 680998273. The next prime is 680998289. The reversal of 680998288 is 882899086.

It can be written as a sum of positive squares in only one way, i.e., 560174224 + 120824064 = 23668^2 + 10992^2 .

It is not an unprimeable number, because it can be changed into a prime (680998289) by changing a digit.

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 as a sum of consecutive naturals, namely, 21281181 + ... + 21281212.

Almost surely, 2^680998288 is an apocalyptic number.

It is an amenable number.

680998288 is a deficient number, since it is larger than the sum of its proper divisors (638435926).

680998288 is a wasteful number, since it uses less digits than its factorization.

680998288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42562401 (or 42562395 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 58.

The square root of 680998288 is about 26095.9438993879. The cubic root of 680998288 is about 879.7960477762.

The spelling of 680998288 in words is "six hundred eighty million, nine hundred ninety-eight thousand, two hundred eighty-eight".