6347843397 has 40 divisors (see below), whose sum is σ = 10843714112. Its totient is φ = 3625171200.

The previous prime is 6347843389. The next prime is 6347843417. The reversal of 6347843397 is 7933487436.

It is a happy number.

It is not a de Polignac number, because 6347843397 - 2³ = 6347843389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6347843317) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1886997 + ... + 1890357.

Almost surely, 2^6347843397 is an apocalyptic number.

It is an amenable number.

6347843397 is a deficient number, since it is larger than the sum of its proper divisors (4495870715).

6347843397 is a wasteful number, since it uses less digits than its factorization.

6347843397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6711 (or 6702 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 54.

The square root of 6347843397 is about 79673.3543727136. The cubic root of 6347843397 is about 1851.5782389984.

The spelling of 6347843397 in words is "six billion, three hundred forty-seven million, eight hundred forty-three thousand, three hundred ninety-seven".