8503428 has 24 divisors (see below), whose sum is σ = 20264832. Its totient is φ = 2773984.

The previous prime is 8503427. The next prime is 8503447. The reversal of 8503428 is 8243058.

8503428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8503395 and 8503404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8503421) 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, 6975 + ... + 8102.

It is an arithmetic number, because the mean of its divisors is an integer number (844368).

Almost surely, 2^8503428 is an apocalyptic number.

It is an amenable number.

8503428 is an abundant number, since it is smaller than the sum of its proper divisors (11761404).

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

8503428 is a wasteful number, since it uses less digits than its factorization.

8503428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15131 (or 15129 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 8503428 is about 2916.0637853106. The cubic root of 8503428 is about 204.1101865334.

It can be divided in two parts, 850 and 3428, that added together give a triangular number (4278 = T₉₂).

The spelling of 8503428 in words is "eight million, five hundred three thousand, four hundred twenty-eight".