9774231939 has 12 divisors (see below), whose sum is σ = 14176920472. Its totient is φ = 6489115200.

The previous prime is 9774231937. The next prime is 9774232019. The reversal of 9774231939 is 9391324779.

9774231939 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9774231939 - 2¹ = 9774231937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9774231931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2250997 + ... + 2255334.

Almost surely, 2^9774231939 is an apocalyptic number.

9774231939 is a deficient number, since it is larger than the sum of its proper divisors (4402688533).

9774231939 is a wasteful number, since it uses less digits than its factorization.

9774231939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506578 (or 4506575 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 9774231939 is about 98864.7153386890. The cubic root of 9774231939 is about 2138.0977023901.

The spelling of 9774231939 in words is "nine billion, seven hundred seventy-four million, two hundred thirty-one thousand, nine hundred thirty-nine".