8120504 has 16 divisors (see below), whose sum is σ = 17401200. Its totient is φ = 3480192.

The previous prime is 8120491. The next prime is 8120527. The reversal of 8120504 is 4050218.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72449 + ... + 72560.

It is an arithmetic number, because the mean of its divisors is an integer number (1087575).

Almost surely, 2^8120504 is an apocalyptic number.

It is an amenable number.

8120504 is an abundant number, since it is smaller than the sum of its proper divisors (9280696).

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

8120504 is a wasteful number, since it uses less digits than its factorization.

8120504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145022 (or 145018 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 8120504 is about 2849.6498030460. The cubic root of 8120504 is about 200.9991996866. Note that the first 3 decimals are identical.

The spelling of 8120504 in words is "eight million, one hundred twenty thousand, five hundred four".