9445 has 4 divisors (see below), whose sum is σ = 11340. Its totient is φ = 7552.

The previous prime is 9439. The next prime is 9461. The reversal of 9445 is 5449.

9445 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 3969 + 5476 = 63^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 9445 - 2³ = 9437 is a prime.

It is an Ulam number.

It is a plaindrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940 + ... + 949.

It is an arithmetic number, because the mean of its divisors is an integer number (2835).

2⁹⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

9445 is a deficient number, since it is larger than the sum of its proper divisors (1895).

9445 is a wasteful number, since it uses less digits than its factorization.

9445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894.

The product of its digits is 720, while the sum is 22.

The square root of 9445 is about 97.1853898485. The cubic root of 9445 is about 21.1381668089.

It can be divided in two parts, 944 and 5, that added together give a palindrome (949).

The spelling of 9445 in words is "nine thousand, four hundred forty-five".