9776500243 has 4 divisors (see below), whose sum is σ = 9777593968. Its totient is φ = 9775406520.

The previous prime is 9776500229. The next prime is 9776500297. The reversal of 9776500243 is 3420056779.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9776500243 - 2⁵ = 9776500211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9776500243.

It is not an unprimeable number, because it can be changed into a prime (9776500043) 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, 533343 + ... + 551368.

It is an arithmetic number, because the mean of its divisors is an integer number (2444398492).

Almost surely, 2^9776500243 is an apocalyptic number.

9776500243 is a deficient number, since it is larger than the sum of its proper divisors (1093725).

9776500243 is a wasteful number, since it uses less digits than its factorization.

9776500243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093724.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 9776500243 is about 98876.1864303028. The cubic root of 9776500243 is about 2138.2630855623.

The spelling of 9776500243 in words is "nine billion, seven hundred seventy-six million, five hundred thousand, two hundred forty-three".