6843897 has 6 divisors (see below), whose sum is σ = 9885642. Its totient is φ = 4562592.

The previous prime is 6843869. The next prime is 6843899. The reversal of 6843897 is 7983486.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6843456 + 441 = 2616^2 + 21^2 .

It is not a de Polignac number, because 6843897 - 2¹⁰ = 6842873 is a prime.

It is a super-2 number, since 2×6843897² = 93677852293218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6843899) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 380208 + ... + 380225.

It is an arithmetic number, because the mean of its divisors is an integer number (1647607).

Almost surely, 2^6843897 is an apocalyptic number.

It is an amenable number.

6843897 is a deficient number, since it is larger than the sum of its proper divisors (3041745).

6843897 is a wasteful number, since it uses less digits than its factorization.

6843897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760439 (or 760436 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 6843897 is about 2616.0842876330. The cubic root of 6843897 is about 189.8604423010.

The spelling of 6843897 in words is "six million, eight hundred forty-three thousand, eight hundred ninety-seven".