688320200 has 48 divisors (see below), whose sum is σ = 1602488580. Its totient is φ = 274959360.

The previous prime is 688320161. The next prime is 688320223. The reversal of 688320200 is 2023886.

It can be written as a sum of positive squares in 6 ways, for example, as 7214596 + 681105604 = 2686^2 + 26098^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185564 + ... + 189236.

Almost surely, 2^688320200 is an apocalyptic number.

It is an amenable number.

688320200 is an abundant number, since it is smaller than the sum of its proper divisors (914168380).

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

688320200 is a wasteful number, since it uses less digits than its factorization.

688320200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626 (or 4617 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 688320200 is about 26235.8571424682. The cubic root of 688320200 is about 882.9379251611.

The spelling of 688320200 in words is "six hundred eighty-eight million, three hundred twenty thousand, two hundred".