688850504 has 16 divisors (see below), whose sum is σ = 1333259520. Its totient is φ = 333314640.

The previous prime is 688850441. The next prime is 688850609. The reversal of 688850504 is 405058886.

It is a super-2 number, since 2×688850504² = 949030033722108032, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 1388564 + ... + 1389059.

It is an arithmetic number, because the mean of its divisors is an integer number (83328720).

Almost surely, 2^688850504 is an apocalyptic number.

It is an amenable number.

688850504 is a deficient number, since it is larger than the sum of its proper divisors (644409016).

688850504 is a wasteful number, since it uses less digits than its factorization.

688850504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777660 (or 2777656 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 44.

The square root of 688850504 is about 26245.9616703218. The cubic root of 688850504 is about 883.1646148711.

The spelling of 688850504 in words is "six hundred eighty-eight million, eight hundred fifty thousand, five hundred four".