9777773 has 2 divisors, whose sum is σ = 9777774. Its totient is φ = 9777772.

The previous prime is 9777769. The next prime is 9777791. The reversal of 9777773 is 3777779.

9777773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9351364 + 426409 = 3058^2 + 653^2 .

It is an emirp because it is prime and its reverse (3777779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9777773 - 2² = 9777769 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9777793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4888886 + 4888887.

It is an arithmetic number, because the mean of its divisors is an integer number (4888887).

Almost surely, 2^9777773 is an apocalyptic number.

It is an amenable number.

9777773 is a deficient number, since it is larger than the sum of its proper divisors (1).

9777773 is an equidigital number, since it uses as much as digits as its factorization.

9777773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453789, while the sum is 47.

The square root of 9777773 is about 3126.9430759130. The cubic root of 9777773 is about 213.8355871704.

The spelling of 9777773 in words is "nine million, seven hundred seventy-seven thousand, seven hundred seventy-three".