9777792223 has 4 divisors (see below), whose sum is σ = 10202913648. Its totient is φ = 9352670800.

The previous prime is 9777792209. The next prime is 9777792229. The reversal of 9777792223 is 3222977779.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222977779 = 7 ⋅460425397.

It is a cyclic number.

It is not a de Polignac number, because 9777792223 - 2²⁵ = 9744237791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9777792229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212560678 + ... + 212560723.

It is an arithmetic number, because the mean of its divisors is an integer number (2550728412).

Almost surely, 2^9777792223 is an apocalyptic number.

9777792223 is a deficient number, since it is larger than the sum of its proper divisors (425121425).

9777792223 is a wasteful number, since it uses less digits than its factorization.

9777792223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425121424.

The product of its digits is 4667544, while the sum is 55.

The square root of 9777792223 is about 98882.7195368331. The cubic root of 9777792223 is about 2138.3572730318.

The spelling of 9777792223 in words is "nine billion, seven hundred seventy-seven million, seven hundred ninety-two thousand, two hundred twenty-three".