6939164207 has 2 divisors, whose sum is σ = 6939164208. Its totient is φ = 6939164206.

The previous prime is 6939164203. The next prime is 6939164209. The reversal of 6939164207 is 7024619396.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6939164207 - 2² = 6939164203 is a prime.

Together with 6939164209, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6939164203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3469582103 + 3469582104.

It is an arithmetic number, because the mean of its divisors is an integer number (3469582104).

Almost surely, 2^6939164207 is an apocalyptic number.

6939164207 is a deficient number, since it is larger than the sum of its proper divisors (1).

6939164207 is an equidigital number, since it uses as much as digits as its factorization.

6939164207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 6939164207 is about 83301.6458841000. The cubic root of 6939164207 is about 1907.3733992737.

The spelling of 6939164207 in words is "six billion, nine hundred thirty-nine million, one hundred sixty-four thousand, two hundred seven".