8905445 has 4 divisors (see below), whose sum is σ = 10686540. Its totient is φ = 7124352.

The previous prime is 8905441. The next prime is 8905447. The reversal of 8905445 is 5445098.

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 5527201 + 3378244 = 2351^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 8905445 - 2² = 8905441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8905441) 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 3 ways as a sum of consecutive naturals, for example, 890540 + ... + 890549.

It is an arithmetic number, because the mean of its divisors is an integer number (2671635).

Almost surely, 2^8905445 is an apocalyptic number.

It is an amenable number.

8905445 is a deficient number, since it is larger than the sum of its proper divisors (1781095).

8905445 is a wasteful number, since it uses less digits than its factorization.

8905445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781094.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 8905445 is about 2984.1992225721. The cubic root of 8905445 is about 207.2773631818.

The spelling of 8905445 in words is "eight million, nine hundred five thousand, four hundred forty-five".