8516220 has 24 divisors (see below), whose sum is σ = 23845584. Its totient is φ = 2270976.

The previous prime is 8516213. The next prime is 8516251. The reversal of 8516220 is 226158.

8516220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70909 + ... + 71028.

It is an arithmetic number, because the mean of its divisors is an integer number (993566).

Almost surely, 2^8516220 is an apocalyptic number.

It is an amenable number.

8516220 is an abundant number, since it is smaller than the sum of its proper divisors (15329364).

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

8516220 is a wasteful number, since it uses less digits than its factorization.

8516220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141949 (or 141947 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 8516220 is about 2918.2563287004. The cubic root of 8516220 is about 204.2124852510.

The spelling of 8516220 in words is "eight million, five hundred sixteen thousand, two hundred twenty".