9993000779 has 2 divisors, whose sum is σ = 9993000780. Its totient is φ = 9993000778.

The previous prime is 9993000761. The next prime is 9993000827. The reversal of 9993000779 is 9770003999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9993000779 - 2¹² = 9992996683 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9993000779.

It is not a weakly prime, because it can be changed into another prime (9993000709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996500389 + 4996500390.

It is an arithmetic number, because the mean of its divisors is an integer number (4996500390).

Almost surely, 2^9993000779 is an apocalyptic number.

9993000779 is a deficient number, since it is larger than the sum of its proper divisors (1).

9993000779 is an equidigital number, since it uses as much as digits as its factorization.

9993000779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 964467, while the sum is 53.

The square root of 9993000779 is about 99964.9977692192. The cubic root of 9993000779 is about 2153.9319272312.

The spelling of 9993000779 in words is "nine billion, nine hundred ninety-three million, seven hundred seventy-nine", and thus it is an aban number.