8556449 has 4 divisors (see below), whose sum is σ = 9334320. Its totient is φ = 7778580.

The previous prime is 8556419. The next prime is 8556463. The reversal of 8556449 is 9446558.

It is a happy number.

8556449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8556449 - 2¹² = 8552353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8556419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388919 + ... + 388940.

It is an arithmetic number, because the mean of its divisors is an integer number (2333580).

Almost surely, 2^8556449 is an apocalyptic number.

It is an amenable number.

8556449 is a deficient number, since it is larger than the sum of its proper divisors (777871).

8556449 is a wasteful number, since it uses less digits than its factorization.

8556449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777870.

The product of its digits is 172800, while the sum is 41.

The square root of 8556449 is about 2925.1408513096. The cubic root of 8556449 is about 204.5335338747.

The spelling of 8556449 in words is "eight million, five hundred fifty-six thousand, four hundred forty-nine".