28841306 has 8 divisors (see below), whose sum is σ = 46589844. Its totient is φ = 13311360.

The previous prime is 28841303. The next prime is 28841317. The reversal of 28841306 is 60314882.

It can be written as a sum of positive squares in 2 ways, for example, as 28783225 + 58081 = 5365^2 + 241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28841303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554615 + ... + 554666.

Almost surely, 2^28841306 is an apocalyptic number.

28841306 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28841306 is a deficient number, since it is larger than the sum of its proper divisors (17748538).

28841306 is a wasteful number, since it uses less digits than its factorization.

28841306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109296.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 28841306 is about 5370.4102264166. The cubic root of 28841306 is about 306.6702454424.

The spelling of 28841306 in words is "twenty-eight million, eight hundred forty-one thousand, three hundred six".