688200472 has 16 divisors (see below), whose sum is σ = 1294972200. Its totient is φ = 342874560.

The previous prime is 688200449. The next prime is 688200473. The reversal of 688200472 is 274002886.

It is a super-2 number, since 2×688200472² = 947239779322045568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688200473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150822 + ... + 155317.

Almost surely, 2^688200472 is an apocalyptic number.

It is an amenable number.

688200472 is a deficient number, since it is larger than the sum of its proper divisors (606771728).

688200472 is a wasteful number, since it uses less digits than its factorization.

688200472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306426 (or 306422 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 688200472 is about 26233.5752805446. The cubic root of 688200472 is about 882.8867287743.

The spelling of 688200472 in words is "six hundred eighty-eight million, two hundred thousand, four hundred seventy-two".