8545905 has 20 divisors (see below), whose sum is σ = 15320052. Its totient is φ = 4557600.

The previous prime is 8545843. The next prime is 8545907. The reversal of 8545905 is 5095458.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 6036849 = 1584^2 + 2457^2 .

It is not a de Polignac number, because 8545905 - 2⁶ = 8545841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8545905.

It is not an unprimeable number, because it can be changed into a prime (8545907) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10146 + ... + 10955.

Almost surely, 2^8545905 is an apocalyptic number.

It is an amenable number.

8545905 is a deficient number, since it is larger than the sum of its proper divisors (6774147).

8545905 is a wasteful number, since it uses less digits than its factorization.

8545905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21118 (or 21109 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 8545905 is about 2923.3379893540. The cubic root of 8545905 is about 204.4494846763.

The spelling of 8545905 in words is "eight million, five hundred forty-five thousand, nine hundred five".