6840005693 has 2 divisors, whose sum is σ = 6840005694. Its totient is φ = 6840005692.

The previous prime is 6840005671. The next prime is 6840005749. The reversal of 6840005693 is 3965000486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6731053849 + 108951844 = 82043^2 + 10438^2 .

It is a cyclic number.

It is not a de Polignac number, because 6840005693 - 2¹⁴ = 6839989309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6840005693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6840005663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3420002846 + 3420002847.

It is an arithmetic number, because the mean of its divisors is an integer number (3420002847).

Almost surely, 2^6840005693 is an apocalyptic number.

It is an amenable number.

6840005693 is a deficient number, since it is larger than the sum of its proper divisors (1).

6840005693 is an equidigital number, since it uses as much as digits as its factorization.

6840005693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 6840005693 is about 82704.3269303366. The cubic root of 6840005693 is about 1898.2445182482.

The spelling of 6840005693 in words is "six billion, eight hundred forty million, five thousand, six hundred ninety-three".