28048159 has 4 divisors (see below), whose sum is σ = 28195200. Its totient is φ = 27901120.

The previous prime is 28048129. The next prime is 28048217. The reversal of 28048159 is 95184082.

28048159 = T₁₇₆ + T₁₇₇ + ... + T₅₅₇.

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

It is a cyclic number.

It is not a de Polignac number, because 28048159 - 2⁵ = 28048127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28048129) 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, 73234 + ... + 73615.

It is an arithmetic number, because the mean of its divisors is an integer number (7048800).

Almost surely, 2^28048159 is an apocalyptic number.

28048159 is a deficient number, since it is larger than the sum of its proper divisors (147041).

28048159 is a wasteful number, since it uses less digits than its factorization.

28048159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147040.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 28048159 is about 5296.0512648576. The cubic root of 28048159 is about 303.8328916237.

The spelling of 28048159 in words is "twenty-eight million, forty-eight thousand, one hundred fifty-nine".