6847655 has 4 divisors (see below), whose sum is σ = 8217192. Its totient is φ = 5478120.

The previous prime is 6847649. The next prime is 6847663. The reversal of 6847655 is 5567486.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6847655 - 2⁶ = 6847591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684761 + ... + 684770.

It is an arithmetic number, because the mean of its divisors is an integer number (2054298).

Almost surely, 2^6847655 is an apocalyptic number.

6847655 is a deficient number, since it is larger than the sum of its proper divisors (1369537).

6847655 is a wasteful number, since it uses less digits than its factorization.

6847655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369536.

The product of its digits is 201600, while the sum is 41.

The square root of 6847655 is about 2616.8024380912. The cubic root of 6847655 is about 189.8951868814.

The spelling of 6847655 in words is "six million, eight hundred forty-seven thousand, six hundred fifty-five".