8539428 has 24 divisors (see below), whose sum is σ = 19983040. Its totient is φ = 2838240.

The previous prime is 8539409. The next prime is 8539429. The reversal of 8539428 is 8249358.

It is a happy number.

8539428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (8539429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4458 + ... + 6078.

Almost surely, 2^8539428 is an apocalyptic number.

It is an amenable number.

8539428 is an abundant number, since it is smaller than the sum of its proper divisors (11443612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8539428 is a wasteful number, since it uses less digits than its factorization.

8539428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067 (or 2065 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 8539428 is about 2922.2299704164. The cubic root of 8539428 is about 204.3978203997.

The spelling of 8539428 in words is "eight million, five hundred thirty-nine thousand, four hundred twenty-eight".