28256854 has 4 divisors (see below), whose sum is σ = 42385284. Its totient is φ = 14128426.

The previous prime is 28256849. The next prime is 28256861. The reversal of 28256854 is 45865282.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7064212 + ... + 7064215.

It is an arithmetic number, because the mean of its divisors is an integer number (10596321).

Almost surely, 2^28256854 is an apocalyptic number.

28256854 is a deficient number, since it is larger than the sum of its proper divisors (14128430).

28256854 is a wasteful number, since it uses less digits than its factorization.

28256854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14128429.

The product of its digits is 153600, while the sum is 40.

The square root of 28256854 is about 5315.7176373468. The cubic root of 28256854 is about 304.5845961802.

The spelling of 28256854 in words is "twenty-eight million, two hundred fifty-six thousand, eight hundred fifty-four".