6689297 has 4 divisors (see below), whose sum is σ = 6980160. Its totient is φ = 6398436.

The previous prime is 6689281. The next prime is 6689303. The reversal of 6689297 is 7929866.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6689297 - 2⁴ = 6689281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6689237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145397 + ... + 145442.

It is an arithmetic number, because the mean of its divisors is an integer number (1745040).

Almost surely, 2^6689297 is an apocalyptic number.

It is an amenable number.

6689297 is a deficient number, since it is larger than the sum of its proper divisors (290863).

6689297 is a wasteful number, since it uses less digits than its factorization.

6689297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290862.

The product of its digits is 326592, while the sum is 47.

The square root of 6689297 is about 2586.3675299539. The cubic root of 6689297 is about 188.4199248524.

The spelling of 6689297 in words is "six million, six hundred eighty-nine thousand, two hundred ninety-seven".