6688038 has 96 divisors (see below), whose sum is σ = 17683200. Its totient is φ = 1645056.

The previous prime is 6688027. The next prime is 6688049. The reversal of 6688038 is 8308866.

It is an interprime number because it is at equal distance from previous prime (6688027) and next prime (6688049).

It is a junction number, because it is equal to n+sod(n) for n = 6687987 and 6688005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 230608 + ... + 230636.

It is an arithmetic number, because the mean of its divisors is an integer number (184200).

Almost surely, 2^6688038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6688038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8841600).

6688038 is an abundant number, since it is smaller than the sum of its proper divisors (10995162).

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

6688038 is a wasteful number, since it uses less digits than its factorization.

6688038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 6688038 is about 2586.1241269514. The cubic root of 6688038 is about 188.4081032031.

The spelling of 6688038 in words is "six million, six hundred eighty-eight thousand, thirty-eight".