8723445 has 16 divisors (see below), whose sum is σ = 14195520. Its totient is φ = 4573184.

The previous prime is 8723441. The next prime is 8723459. The reversal of 8723445 is 5443278.

It is a cyclic number.

It is not a de Polignac number, because 8723445 - 2² = 8723441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8723441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4044 + ... + 5813.

It is an arithmetic number, because the mean of its divisors is an integer number (887220).

Almost surely, 2^8723445 is an apocalyptic number.

It is an amenable number.

8723445 is a deficient number, since it is larger than the sum of its proper divisors (5472075).

8723445 is a wasteful number, since it uses less digits than its factorization.

8723445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9924.

The product of its digits is 26880, while the sum is 33.

The square root of 8723445 is about 2953.5478665497. The cubic root of 8723445 is about 205.8555952180.

It can be divided in two parts, 87 and 23445, that added together give a palindrome (23532).

The spelling of 8723445 in words is "eight million, seven hundred twenty-three thousand, four hundred forty-five".