9772231747 has 4 divisors (see below), whose sum is σ = 9823395456. Its totient is φ = 9721068040.

The previous prime is 9772231687. The next prime is 9772231769. The reversal of 9772231747 is 7471322779.

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 9772231747 - 2¹¹ = 9772229699 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 9772231747.

It is not an unprimeable number, because it can be changed into a prime (9772231787) 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, 25581568 + ... + 25581949.

It is an arithmetic number, because the mean of its divisors is an integer number (2455848864).

Almost surely, 2^9772231747 is an apocalyptic number.

9772231747 is a deficient number, since it is larger than the sum of its proper divisors (51163709).

9772231747 is a wasteful number, since it uses less digits than its factorization.

9772231747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51163708.

The product of its digits is 1037232, while the sum is 49.

The square root of 9772231747 is about 98854.5990179516. The cubic root of 9772231747 is about 2137.9518461667.

The spelling of 9772231747 in words is "nine billion, seven hundred seventy-two million, two hundred thirty-one thousand, seven hundred forty-seven".