6688057 has 8 divisors (see below), whose sum is σ = 7126560. Its totient is φ = 6258240.

The previous prime is 6688051. The next prime is 6688069. The reversal of 6688057 is 7508866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6688057 - 2³ = 6688049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6688051) 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, 544 + ... + 3697.

It is an arithmetic number, because the mean of its divisors is an integer number (890820).

Almost surely, 2^6688057 is an apocalyptic number.

It is an amenable number.

6688057 is a deficient number, since it is larger than the sum of its proper divisors (438503).

6688057 is a wasteful number, since it uses less digits than its factorization.

6688057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 6688057 is about 2586.1278003997. The cubic root of 6688057 is about 188.4082816187.

The spelling of 6688057 in words is "six million, six hundred eighty-eight thousand, fifty-seven".