6912639347 has 2 divisors, whose sum is σ = 6912639348. Its totient is φ = 6912639346.

The previous prime is 6912639341. The next prime is 6912639389. The reversal of 6912639347 is 7439362196.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6912639347 - 2²² = 6908445043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6912639295 and 6912639304.

It is not a weakly prime, because it can be changed into another prime (6912639341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3456319673 + 3456319674.

It is an arithmetic number, because the mean of its divisors is an integer number (3456319674).

Almost surely, 2^6912639347 is an apocalyptic number.

6912639347 is a deficient number, since it is larger than the sum of its proper divisors (1).

6912639347 is an equidigital number, since it uses as much as digits as its factorization.

6912639347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 50.

The square root of 6912639347 is about 83142.2837490046. The cubic root of 6912639347 is about 1904.9399931957.

The spelling of 6912639347 in words is "six billion, nine hundred twelve million, six hundred thirty-nine thousand, three hundred forty-seven".