6847142 has 4 divisors (see below), whose sum is σ = 10270716. Its totient is φ = 3423570.

The previous prime is 6847121. The next prime is 6847147. The reversal of 6847142 is 2417486.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6847099 and 6847108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6847147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1711784 + ... + 1711787.

It is an arithmetic number, because the mean of its divisors is an integer number (2567679).

Almost surely, 2^6847142 is an apocalyptic number.

6847142 is a deficient number, since it is larger than the sum of its proper divisors (3423574).

6847142 is a wasteful number, since it uses less digits than its factorization.

6847142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423573.

The product of its digits is 10752, while the sum is 32.

The square root of 6847142 is about 2616.7044158636. The cubic root of 6847142 is about 189.8904446904.

It can be divided in two parts, 68471 and 42, that multiplied together give a palindrome (2875782).

The spelling of 6847142 in words is "six million, eight hundred forty-seven thousand, one hundred forty-two".