6939021347 has 2 divisors, whose sum is σ = 6939021348. Its totient is φ = 6939021346.

The previous prime is 6939021319. The next prime is 6939021433. The reversal of 6939021347 is 7431209396.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6939021347 - 2⁶ = 6939021283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6939021298 and 6939021307.

It is not a weakly prime, because it can be changed into another prime (6939021247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3469510673 + 3469510674.

It is an arithmetic number, because the mean of its divisors is an integer number (3469510674).

Almost surely, 2^6939021347 is an apocalyptic number.

6939021347 is a deficient number, since it is larger than the sum of its proper divisors (1).

6939021347 is an equidigital number, since it uses as much as digits as its factorization.

6939021347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 6939021347 is about 83300.7883936281. The cubic root of 6939021347 is about 1907.3603098379.

The spelling of 6939021347 in words is "six billion, nine hundred thirty-nine million, twenty-one thousand, three hundred forty-seven".