8316728 has 16 divisors (see below), whose sum is σ = 17821680. Its totient is φ = 3564288.

The previous prime is 8316709. The next prime is 8316739. The reversal of 8316728 is 8276138.

8316728 = 1087² + 1088² + ... + 1093².

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 74201 + ... + 74312.

It is an arithmetic number, because the mean of its divisors is an integer number (1113855).

Almost surely, 2^8316728 is an apocalyptic number.

It is an amenable number.

8316728 is an abundant number, since it is smaller than the sum of its proper divisors (9504952).

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

8316728 is a wasteful number, since it uses less digits than its factorization.

8316728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148526 (or 148522 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 8316728 is about 2883.8737836459. The cubic root of 8316728 is about 202.6053143199.

It can be divided in two parts, 83167 and 28, that multiplied together give a square (2328676 = 1526²).

The spelling of 8316728 in words is "eight million, three hundred sixteen thousand, seven hundred twenty-eight".