9979002773 has 2 divisors, whose sum is σ = 9979002774. Its totient is φ = 9979002772.

The previous prime is 9979002769. The next prime is 9979002779. The reversal of 9979002773 is 3772009799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9033932209 + 945070564 = 95047^2 + 30742^2 .

It is a cyclic number.

It is not a de Polignac number, because 9979002773 - 2² = 9979002769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9979002779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4989501386 + 4989501387.

It is an arithmetic number, because the mean of its divisors is an integer number (4989501387).

Almost surely, 2^9979002773 is an apocalyptic number.

It is an amenable number.

9979002773 is a deficient number, since it is larger than the sum of its proper divisors (1).

9979002773 is an equidigital number, since it uses as much as digits as its factorization.

9979002773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500282, while the sum is 53.

The square root of 9979002773 is about 99894.9586966229. The cubic root of 9979002773 is about 2152.9257282634.

The spelling of 9979002773 in words is "nine billion, nine hundred seventy-nine million, two thousand, seven hundred seventy-three".