8471916 has 72 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 2612736.

The previous prime is 8471909. The next prime is 8471917. The reversal of 8471916 is 6191748.

It is a super-2 number, since 2×8471916² = 143546721422112, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (8471917) 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, 66645 + ... + 66771.

It is an arithmetic number, because the mean of its divisors is an integer number (320320).

Almost surely, 2^8471916 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 8471916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11531520).

8471916 is an abundant number, since it is smaller than the sum of its proper divisors (14591124).

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

8471916 is a wasteful number, since it uses less digits than its factorization.

8471916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 258 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 8471916 is about 2910.6555962532. The cubic root of 8471916 is about 203.8577439604.

The spelling of 8471916 in words is "eight million, four hundred seventy-one thousand, nine hundred sixteen".