6689357 has 4 divisors (see below), whose sum is σ = 6730560. Its totient is φ = 6648156.

The previous prime is 6689351. The next prime is 6689359. The reversal of 6689357 is 7539866.

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 6689357 - 2⁸ = 6689101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6689351) 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, 20357 + ... + 20682.

It is an arithmetic number, because the mean of its divisors is an integer number (1682640).

Almost surely, 2^6689357 is an apocalyptic number.

It is an amenable number.

6689357 is a deficient number, since it is larger than the sum of its proper divisors (41203).

6689357 is a wasteful number, since it uses less digits than its factorization.

6689357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41202.

The product of its digits is 272160, while the sum is 44.

The square root of 6689357 is about 2586.3791292075. The cubic root of 6689357 is about 188.4204881982.

The spelling of 6689357 in words is "six million, six hundred eighty-nine thousand, three hundred fifty-seven".