28046271 has 16 divisors (see below), whose sum is σ = 40890240. Its totient is φ = 16957920.

The previous prime is 28046251. The next prime is 28046279. The reversal of 28046271 is 17264082.

It is not a de Polignac number, because 28046271 - 2⁷ = 28046143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28046279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19741 + ... + 21113.

It is an arithmetic number, because the mean of its divisors is an integer number (2555640).

Almost surely, 2^28046271 is an apocalyptic number.

28046271 is a deficient number, since it is larger than the sum of its proper divisors (12843969).

28046271 is a wasteful number, since it uses less digits than its factorization.

28046271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 28046271 is about 5295.8730158492. The cubic root of 28046271 is about 303.8260741902.

The spelling of 28046271 in words is "twenty-eight million, forty-six thousand, two hundred seventy-one".