9723445 has 4 divisors (see below), whose sum is σ = 11668140. Its totient is φ = 7778752.

The previous prime is 9723431. The next prime is 9723449. The reversal of 9723445 is 5443279.

9723445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3617604 + 6105841 = 1902^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 9723445 - 2⁷ = 9723317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9723445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9723449) 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, 972340 + ... + 972349.

It is an arithmetic number, because the mean of its divisors is an integer number (2917035).

Almost surely, 2^9723445 is an apocalyptic number.

It is an amenable number.

9723445 is a deficient number, since it is larger than the sum of its proper divisors (1944695).

9723445 is a wasteful number, since it uses less digits than its factorization.

9723445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944694.

The product of its digits is 30240, while the sum is 34.

The square root of 9723445 is about 3118.2438968112. The cubic root of 9723445 is about 213.4388082490.

It can be divided in two parts, 97234 and 45, that added together give a palindrome (97279).

The spelling of 9723445 in words is "nine million, seven hundred twenty-three thousand, four hundred forty-five".