8504139 has 8 divisors (see below), whose sum is σ = 12958720. Its totient is φ = 4859496.

The previous prime is 8504129. The next prime is 8504143. The reversal of 8504139 is 9314058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8504139 - 2¹⁷ = 8373067 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 202459 + ... + 202500.

It is an arithmetic number, because the mean of its divisors is an integer number (1619840).

Almost surely, 2^8504139 is an apocalyptic number.

8504139 is a deficient number, since it is larger than the sum of its proper divisors (4454581).

8504139 is a wasteful number, since it uses less digits than its factorization.

8504139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404969.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 8504139 is about 2916.1856936759. The cubic root of 8504139 is about 204.1158751529.

The spelling of 8504139 in words is "eight million, five hundred four thousand, one hundred thirty-nine".