9745231947 has 16 divisors (see below), whose sum is σ = 14292036480. Its totient is φ = 5906198760.

The previous prime is 9745231921. The next prime is 9745231981. The reversal of 9745231947 is 7491325479.

It is a happy number.

It is not a de Polignac number, because 9745231947 - 2⁷ = 9745231819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9745231947.

It is not an unprimeable number, because it can be changed into a prime (9745231907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216297 + ... + 1224282.

It is an arithmetic number, because the mean of its divisors is an integer number (893252280).

Almost surely, 2^9745231947 is an apocalyptic number.

9745231947 is a deficient number, since it is larger than the sum of its proper divisors (4546804533).

9745231947 is a wasteful number, since it uses less digits than its factorization.

9745231947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440615 (or 2440593 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 9745231947 is about 98717.9413632598. The cubic root of 9745231947 is about 2135.9810402534.

The spelling of 9745231947 in words is "nine billion, seven hundred forty-five million, two hundred thirty-one thousand, nine hundred forty-seven".