8504109 has 20 divisors (see below), whose sum is σ = 12901504. Its totient is φ = 5581224.

The previous prime is 8504081. The next prime is 8504129. The reversal of 8504109 is 9014058.

It is not a de Polignac number, because 8504109 - 2¹¹ = 8502061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8504129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4644 + ... + 6210.

Almost surely, 2^8504109 is an apocalyptic number.

It is an amenable number.

8504109 is a deficient number, since it is larger than the sum of its proper divisors (4397395).

8504109 is a wasteful number, since it uses less digits than its factorization.

8504109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8504109 is about 2916.1805499660. The cubic root of 8504109 is about 204.1156351332.

The spelling of 8504109 in words is "eight million, five hundred four thousand, one hundred nine".