28056895 has 8 divisors (see below), whose sum is σ = 35132256. Its totient is φ = 21469536.

The previous prime is 28056869. The next prime is 28056907. The reversal of 28056895 is 59865082.

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

It is a cyclic number.

It is not a de Polignac number, because 28056895 - 2¹⁵ = 28024127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121872 + ... + 122101.

It is an arithmetic number, because the mean of its divisors is an integer number (4391532).

Almost surely, 2^28056895 is an apocalyptic number.

28056895 is a deficient number, since it is larger than the sum of its proper divisors (7075361).

28056895 is a wasteful number, since it uses less digits than its factorization.

28056895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244001.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 28056895 is about 5296.8759660766. The cubic root of 28056895 is about 303.8644327148.

It can be divided in two parts, 280 and 56895, that added together give a palindrome (57175).

The spelling of 28056895 in words is "twenty-eight million, fifty-six thousand, eight hundred ninety-five".