6688396 has 36 divisors (see below), whose sum is σ = 13868176. Its totient is φ = 2803680.

The previous prime is 6688393. The next prime is 6688411. The reversal of 6688396 is 6938866.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6688393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5761 + ... + 6823.

Almost surely, 2^6688396 is an apocalyptic number.

It is an amenable number.

6688396 is an abundant number, since it is smaller than the sum of its proper divisors (7179780).

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

6688396 is a wasteful number, since it uses less digits than its factorization.

6688396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1089 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 6688396 is about 2586.1933415737. The cubic root of 6688396 is about 188.4114648715.

The spelling of 6688396 in words is "six million, six hundred eighty-eight thousand, three hundred ninety-six".