6681348 has 18 divisors (see below), whose sum is σ = 16889054. Its totient is φ = 2227104.

The previous prime is 6681329. The next prime is 6681359. The reversal of 6681348 is 8431866.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4743684 + 1937664 = 2178^2 + 1392^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×6681348² = 89280822194208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) 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 (36), and also a Moran number because the ratio is a prime number: 185593 = 6681348 / (6 + 6 + 8 + 1 + 3 + 4 + 8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92761 + ... + 92832.

Almost surely, 2^6681348 is an apocalyptic number.

It is an amenable number.

6681348 is an abundant number, since it is smaller than the sum of its proper divisors (10207706).

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

6681348 is a wasteful number, since it uses less digits than its factorization.

6681348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185603 (or 185598 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6681348 is about 2584.8303619387. The cubic root of 6681348 is about 188.3452611201.

It can be divided in two parts, 668 and 1348, that added together give a triangular number (2016 = T₆₃).

The spelling of 6681348 in words is "six million, six hundred eighty-one thousand, three hundred forty-eight".