8445945 has 16 divisors (see below), whose sum is σ = 14101632. Its totient is φ = 4308480.

The previous prime is 8445929. The next prime is 8445949. The reversal of 8445945 is 5495448.

It is not a de Polignac number, because 8445945 - 2⁴ = 8445929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8445949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11896 + ... + 12585.

It is an arithmetic number, because the mean of its divisors is an integer number (881352).

Almost surely, 2^8445945 is an apocalyptic number.

It is an amenable number.

8445945 is a deficient number, since it is larger than the sum of its proper divisors (5655687).

8445945 is a wasteful number, since it uses less digits than its factorization.

8445945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24512.

The product of its digits is 115200, while the sum is 39.

The square root of 8445945 is about 2906.1908058488. The cubic root of 8445945 is about 203.6492193576.

The spelling of 8445945 in words is "eight million, four hundred forty-five thousand, nine hundred forty-five".