28508854 has 32 divisors (see below), whose sum is σ = 49484160. Its totient is φ = 12182400.

The previous prime is 28508849. The next prime is 28508861. The reversal of 28508854 is 45880582.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100597 + ... + 100879.

It is an arithmetic number, because the mean of its divisors is an integer number (1546380).

Almost surely, 2^28508854 is an apocalyptic number.

28508854 is a deficient number, since it is larger than the sum of its proper divisors (20975306).

28508854 is a wasteful number, since it uses less digits than its factorization.

28508854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556.

The product of its (nonzero) digits is 102400, while the sum is 40.

The square root of 28508854 is about 5339.3683146979. The cubic root of 28508854 is about 305.4873655780.

The spelling of 28508854 in words is "twenty-eight million, five hundred eight thousand, eight hundred fifty-four".