6689364 has 72 divisors (see below), whose sum is σ = 18232704. Its totient is φ = 1900800.

The previous prime is 6689363. The next prime is 6689377. The reversal of 6689364 is 4639866.

6689364 = T₃₁₇ + T₃₁₈ + ... + T₄₁₅.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6689363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24549 + ... + 24819.

It is an arithmetic number, because the mean of its divisors is an integer number (253232).

Almost surely, 2^6689364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6689364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9116352).

6689364 is an abundant number, since it is smaller than the sum of its proper divisors (11543340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6689364 is a wasteful number, since it uses less digits than its factorization.

6689364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 304 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 6689364 is about 2586.3804824503. The cubic root of 6689364 is about 188.4205539216.

The spelling of 6689364 in words is "six million, six hundred eighty-nine thousand, three hundred sixty-four".