8538516 has 72 divisors (see below), whose sum is σ = 25485824. Its totient is φ = 2358720.

The previous prime is 8538511. The next prime is 8538529. The reversal of 8538516 is 6158358.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8538511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7266 + ... + 8358.

Almost surely, 2^8538516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8538516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12742912).

8538516 is an abundant number, since it is smaller than the sum of its proper divisors (16947308).

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

8538516 is a wasteful number, since it uses less digits than its factorization.

8538516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1136 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 8538516 is about 2922.0739210362. The cubic root of 8538516 is about 204.3905436653.

The spelling of 8538516 in words is "eight million, five hundred thirty-eight thousand, five hundred sixteen".