8074728 has 80 divisors (see below), whose sum is σ = 23979780. Its totient is φ = 2529792.

The previous prime is 8074723. The next prime is 8074739. The reversal of 8074728 is 8274708.

It can be written as a sum of positive squares in 2 ways, for example, as 6441444 + 1633284 = 2538^2 + 1278^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 8074692 and 8074701.

It is not an unprimeable number, because it can be changed into a prime (8074723) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10650 + ... + 11382.

Almost surely, 2^8074728 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 8074728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11989890).

8074728 is an abundant number, since it is smaller than the sum of its proper divisors (15905052).

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

8074728 is a wasteful number, since it uses less digits than its factorization.

8074728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 8074728 is about 2841.6065878302. The cubic root of 8074728 is about 200.6208043493.

The spelling of 8074728 in words is "eight million, seventy-four thousand, seven hundred twenty-eight".