8621316 has 120 divisors (see below), whose sum is σ = 25613280. Its totient is φ = 2505600.

The previous prime is 8621309. The next prime is 8621339. The reversal of 8621316 is 6131268.

8621316 is a `hidden beast` number, since 8 + 621 + 31 + 6 = 666.

8621316 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8621316.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 146095 + ... + 146153.

It is an arithmetic number, because the mean of its divisors is an integer number (213444).

Almost surely, 2^8621316 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 8621316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12806640).

8621316 is an abundant number, since it is smaller than the sum of its proper divisors (16991964).

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

8621316 is a wasteful number, since it uses less digits than its factorization.

8621316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 116 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 8621316 is about 2936.2077583168. The cubic root of 8621316 is about 205.0490939330.

The spelling of 8621316 in words is "eight million, six hundred twenty-one thousand, three hundred sixteen".