6906140347 has 2 divisors, whose sum is σ = 6906140348. Its totient is φ = 6906140346.

The previous prime is 6906140323. The next prime is 6906140389. The reversal of 6906140347 is 7430416096.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6906140347 - 2¹¹ = 6906138299 is a prime.

It is a super-2 number, since 2×6906140347² = 95389548984922560818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6906140147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3453070173 + 3453070174.

It is an arithmetic number, because the mean of its divisors is an integer number (3453070174).

Almost surely, 2^6906140347 is an apocalyptic number.

6906140347 is a deficient number, since it is larger than the sum of its proper divisors (1).

6906140347 is an equidigital number, since it uses as much as digits as its factorization.

6906140347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 6906140347 is about 83103.1909555824. The cubic root of 6906140347 is about 1904.3428220227.

The spelling of 6906140347 in words is "six billion, nine hundred six million, one hundred forty thousand, three hundred forty-seven".