6688454 has 4 divisors (see below), whose sum is σ = 10032684. Its totient is φ = 3344226.

The previous prime is 6688433. The next prime is 6688457. The reversal of 6688454 is 4548866.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6688457) 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 as a sum of consecutive naturals, namely, 1672112 + ... + 1672115.

It is an arithmetic number, because the mean of its divisors is an integer number (2508171).

Almost surely, 2^6688454 is an apocalyptic number.

6688454 is a deficient number, since it is larger than the sum of its proper divisors (3344230).

6688454 is a wasteful number, since it uses less digits than its factorization.

6688454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344229.

The product of its digits is 184320, while the sum is 41.

The square root of 6688454 is about 2586.2045549415. The cubic root of 6688454 is about 188.4120094880.

The spelling of 6688454 in words is "six million, six hundred eighty-eight thousand, four hundred fifty-four".