6847280 has 80 divisors (see below), whose sum is σ = 17998848. Its totient is φ = 2400000.

The previous prime is 6847237. The next prime is 6847283. The reversal of 6847280 is 827486.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 6847280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6847283) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27155 + ... + 27405.

Almost surely, 2^6847280 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 6847280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8999424).

6847280 is an abundant number, since it is smaller than the sum of its proper divisors (11151568).

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

6847280 is a wasteful number, since it uses less digits than its factorization.

6847280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 6847280 is about 2616.7307847771. The cubic root of 6847280 is about 189.8917203908.

The spelling of 6847280 in words is "six million, eight hundred forty-seven thousand, two hundred eighty".