8520445 has 8 divisors (see below), whose sum is σ = 10270944. Its totient is φ = 6785424.

The previous prime is 8520437. The next prime is 8520481. The reversal of 8520445 is 5440258.

8520445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8520445 - 2³ = 8520437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619 + ... + 4888.

It is an arithmetic number, because the mean of its divisors is an integer number (1283868).

Almost surely, 2^8520445 is an apocalyptic number.

It is an amenable number.

8520445 is a deficient number, since it is larger than the sum of its proper divisors (1750499).

8520445 is a wasteful number, since it uses less digits than its factorization.

8520445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7739.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 8520445 is about 2918.9801301139. The cubic root of 8520445 is about 204.2462504312.

The spelling of 8520445 in words is "eight million, five hundred twenty thousand, four hundred forty-five".