6843157 has 4 divisors (see below), whose sum is σ = 7063936. Its totient is φ = 6622380.

The previous prime is 6843143. The next prime is 6843181. The reversal of 6843157 is 7513486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6843157 is a prime.

It is a Duffinian number.

6843157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6843107) 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 3 ways as a sum of consecutive naturals, for example, 110343 + ... + 110404.

It is an arithmetic number, because the mean of its divisors is an integer number (1765984).

Almost surely, 2^6843157 is an apocalyptic number.

It is an amenable number.

6843157 is a deficient number, since it is larger than the sum of its proper divisors (220779).

6843157 is a wasteful number, since it uses less digits than its factorization.

6843157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220778.

The product of its digits is 20160, while the sum is 34.

The square root of 6843157 is about 2615.9428510577. The cubic root of 6843157 is about 189.8535991339.

The spelling of 6843157 in words is "six million, eight hundred forty-three thousand, one hundred fifty-seven".