8216284724 has 12 divisors (see below), whose sum is σ = 14381937444. Its totient is φ = 4107159744.

The previous prime is 8216284679. The next prime is 8216284753. The reversal of 8216284724 is 4274826128.

It can be written as a sum of positive squares in 2 ways, for example, as 6410884624 + 1805400100 = 80068^2 + 42490^2 .

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, 226679 + ... + 260414.

It is an arithmetic number, because the mean of its divisors is an integer number (1198494787).

Almost surely, 2^8216284724 is an apocalyptic number.

It is an amenable number.

8216284724 is a deficient number, since it is larger than the sum of its proper divisors (6165652720).

8216284724 is a wasteful number, since it uses less digits than its factorization.

8216284724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491314 (or 491312 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 8216284724 is about 90643.7241291420. The cubic root of 8216284724 is about 2017.8636961374.

The spelling of 8216284724 in words is "eight billion, two hundred sixteen million, two hundred eighty-four thousand, seven hundred twenty-four".