688850054 has 16 divisors (see below), whose sum is σ = 1092340080. Its totient is φ = 324892800.

The previous prime is 688850051. The next prime is 688850077. The reversal of 688850054 is 450058886.

It is a junction number, because it is equal to n+sod(n) for n = 688849987 and 688850014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688850051) 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 7 ways as a sum of consecutive naturals, for example, 30047 + ... + 47754.

It is an arithmetic number, because the mean of its divisors is an integer number (68271255).

Almost surely, 2^688850054 is an apocalyptic number.

688850054 is a deficient number, since it is larger than the sum of its proper divisors (403490026).

688850054 is a wasteful number, since it uses less digits than its factorization.

688850054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78055.

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

The square root of 688850054 is about 26245.9530975730. The cubic root of 688850054 is about 883.1644225584.

The spelling of 688850054 in words is "six hundred eighty-eight million, eight hundred fifty thousand, fifty-four".