6691344 has 160 divisors (see below), whose sum is σ = 21427200. Its totient is φ = 1774080.

The previous prime is 6691337. The next prime is 6691361. The reversal of 6691344 is 4431966.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230722 + ... + 230750.

It is an arithmetic number, because the mean of its divisors is an integer number (133920).

Almost surely, 2^6691344 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 6691344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10713600).

6691344 is an abundant number, since it is smaller than the sum of its proper divisors (14735856).

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

6691344 is a wasteful number, since it uses less digits than its factorization.

6691344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 87 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 6691344 is about 2586.7632284382. The cubic root of 6691344 is about 188.4391424299.

The spelling of 6691344 in words is "six million, six hundred ninety-one thousand, three hundred forty-four".