6930439693 has 2 divisors, whose sum is σ = 6930439694. Its totient is φ = 6930439692.

The previous prime is 6930439673. The next prime is 6930439699. The reversal of 6930439693 is 3969340396.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5645719044 + 1284720649 = 75138^2 + 35843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6930439693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6930439693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6930439699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3465219846 + 3465219847.

It is an arithmetic number, because the mean of its divisors is an integer number (3465219847).

Almost surely, 2^6930439693 is an apocalyptic number.

It is an amenable number.

6930439693 is a deficient number, since it is larger than the sum of its proper divisors (1).

6930439693 is an equidigital number, since it uses as much as digits as its factorization.

6930439693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2834352, while the sum is 52.

The square root of 6930439693 is about 83249.2624171530. The cubic root of 6930439693 is about 1906.5736927370.

The spelling of 6930439693 in words is "six billion, nine hundred thirty million, four hundred thirty-nine thousand, six hundred ninety-three".