28282679 has 4 divisors (see below), whose sum is σ = 29946384. Its totient is φ = 26618976.

The previous prime is 28282669. The next prime is 28282693. The reversal of 28282679 is 97628282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97628282 = 2 ⋅48814141.

It is a cyclic number.

It is not a de Polignac number, because 28282679 - 2¹² = 28278583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28282669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831827 + ... + 831860.

It is an arithmetic number, because the mean of its divisors is an integer number (7486596).

Almost surely, 2^28282679 is an apocalyptic number.

28282679 is a deficient number, since it is larger than the sum of its proper divisors (1663705).

28282679 is a wasteful number, since it uses less digits than its factorization.

28282679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663704.

The product of its digits is 193536, while the sum is 44.

The square root of 28282679 is about 5318.1461995699. The cubic root of 28282679 is about 304.6773583598.

The spelling of 28282679 in words is "twenty-eight million, two hundred eighty-two thousand, six hundred seventy-nine".