9738945 has 12 divisors (see below), whose sum is σ = 16880916. Its totient is φ = 5194080.

The previous prime is 9738931. The next prime is 9738947. The reversal of 9738945 is 5498379.

It can be written as a sum of positive squares in 2 ways, for example, as 7551504 + 2187441 = 2748^2 + 1479^2 .

It is not a de Polignac number, because 9738945 - 2¹⁰ = 9737921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 216421 = 9738945 / (9 + 7 + 3 + 8 + 9 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 9738945.

It is not an unprimeable number, because it can be changed into a prime (9738947) 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, 108166 + ... + 108255.

It is an arithmetic number, because the mean of its divisors is an integer number (1406743).

Almost surely, 2^9738945 is an apocalyptic number.

It is an amenable number.

9738945 is a deficient number, since it is larger than the sum of its proper divisors (7141971).

9738945 is a wasteful number, since it uses less digits than its factorization.

9738945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216432 (or 216429 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 9738945 is about 3120.7282803858. The cubic root of 9738945 is about 213.5521612557.

The spelling of 9738945 in words is "nine million, seven hundred thirty-eight thousand, nine hundred forty-five".