5728306 has 4 divisors (see below), whose sum is σ = 8592462. Its totient is φ = 2864152.

The previous prime is 5728301. The next prime is 5728319. The reversal of 5728306 is 6038275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3837681 + 1890625 = 1959^2 + 1375^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5728301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432075 + ... + 1432078.

Almost surely, 2^5728306 is an apocalyptic number.

5728306 is a deficient number, since it is larger than the sum of its proper divisors (2864156).

5728306 is a wasteful number, since it uses less digits than its factorization.

5728306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864155.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 5728306 is about 2393.3879752351. The cubic root of 5728306 is about 178.9268034007.

Subtracting from 5728306 its sum of digits (31), we obtain a palindrome (5728275).

The spelling of 5728306 in words is "five million, seven hundred twenty-eight thousand, three hundred six".