6689001 has 12 divisors (see below), whose sum is σ = 9803696. Its totient is φ = 4053720.

The previous prime is 6688999. The next prime is 6689029. The reversal of 6689001 is 1009866.

It is not a de Polignac number, because 6689001 - 2¹ = 6688999 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6689001.

It is not an unprimeable number, because it can be changed into a prime (6689101) 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, 8851 + ... + 9576.

Almost surely, 2^6689001 is an apocalyptic number.

It is an amenable number.

6689001 is a deficient number, since it is larger than the sum of its proper divisors (3114695).

6689001 is a wasteful number, since it uses less digits than its factorization.

6689001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18452 (or 18441 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 6689001 is about 2586.3103062084. The cubic root of 6689001 is about 188.4171456306.

It can be divided in two parts, 668 and 9001, that added together give a palindrome (9669).

The spelling of 6689001 in words is "six million, six hundred eighty-nine thousand, one".