8478549 has 6 divisors (see below), whose sum is σ = 12246806. Its totient is φ = 5652360.

The previous prime is 8478539. The next prime is 8478551. The reversal of 8478549 is 9458748.

8478549 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7700625 + 777924 = 2775^2 + 882^2 .

It is not a de Polignac number, because 8478549 - 2⁹ = 8478037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 471022 + ... + 471039.

Almost surely, 2^8478549 is an apocalyptic number.

It is an amenable number.

8478549 is a deficient number, since it is larger than the sum of its proper divisors (3768257).

8478549 is a wasteful number, since it uses less digits than its factorization.

8478549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942067 (or 942064 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 8478549 is about 2911.7948073310. The cubic root of 8478549 is about 203.9109328603.

The spelling of 8478549 in words is "eight million, four hundred seventy-eight thousand, five hundred forty-nine".