6885447 has 8 divisors (see below), whose sum is σ = 9270144. Its totient is φ = 4545528.

The previous prime is 6885443. The next prime is 6885451. The reversal of 6885447 is 7445886.

It is an interprime number because it is at equal distance from previous prime (6885443) and next prime (6885451).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6885447 - 2² = 6885443 is a prime.

6885447 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6885399 and 6885408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6885443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10833 + ... + 11450.

It is an arithmetic number, because the mean of its divisors is an integer number (1158768).

Almost surely, 2^6885447 is an apocalyptic number.

6885447 is a deficient number, since it is larger than the sum of its proper divisors (2384697).

6885447 is a wasteful number, since it uses less digits than its factorization.

6885447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22389.

The product of its digits is 215040, while the sum is 42.

The square root of 6885447 is about 2624.0135289285. The cubic root of 6885447 is about 190.2438880987.

It can be divided in two parts, 688544 and 7, that added together give a triangular number (688551 = T₁₁₇₃).

The spelling of 6885447 in words is "six million, eight hundred eighty-five thousand, four hundred forty-seven".