6858147 has 8 divisors (see below), whose sum is σ = 9316944. Its totient is φ = 4485728.

The previous prime is 6858139. The next prime is 6858149. The reversal of 6858147 is 7418586.

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

It is a cyclic number.

It is not a de Polignac number, because 6858147 - 2³ = 6858139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6858149) 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 7 ways as a sum of consecutive naturals, for example, 21408 + ... + 21725.

It is an arithmetic number, because the mean of its divisors is an integer number (1164618).

Almost surely, 2^6858147 is an apocalyptic number.

6858147 is a deficient number, since it is larger than the sum of its proper divisors (2458797).

6858147 is a wasteful number, since it uses less digits than its factorization.

6858147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43189.

The product of its digits is 53760, while the sum is 39.

The square root of 6858147 is about 2618.8064075071. The cubic root of 6858147 is about 189.9921234039.

The spelling of 6858147 in words is "six million, eight hundred fifty-eight thousand, one hundred forty-seven".