6891344 has 10 divisors (see below), whose sum is σ = 13352010. Its totient is φ = 3445664.

The previous prime is 6891337. The next prime is 6891383. The reversal of 6891344 is 4431986.

It can be written as a sum of positive squares in only one way, i.e., 6697744 + 193600 = 2588^2 + 440^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215339 + ... + 215370.

It is an arithmetic number, because the mean of its divisors is an integer number (1335201).

Almost surely, 2^6891344 is an apocalyptic number.

It is an amenable number.

6891344 is a deficient number, since it is larger than the sum of its proper divisors (6460666).

6891344 is a wasteful number, since it uses less digits than its factorization.

6891344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430717 (or 430711 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 6891344 is about 2625.1369488086. The cubic root of 6891344 is about 190.2981836823.

The spelling of 6891344 in words is "six million, eight hundred ninety-one thousand, three hundred forty-four".