28386654 has 8 divisors (see below), whose sum is σ = 56773320. Its totient is φ = 9462216.

The previous prime is 28386649. The next prime is 28386671. The reversal of 28386654 is 45668382.

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

28386654 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365549 + ... + 2365560.

It is an arithmetic number, because the mean of its divisors is an integer number (7096665).

Almost surely, 2^28386654 is an apocalyptic number.

28386654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28386654 is a wasteful number, since it uses less digits than its factorization.

28386654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731114.

The product of its digits is 276480, while the sum is 42.

The square root of 28386654 is about 5327.9127245104. The cubic root of 28386654 is about 305.0502613577.

The spelling of 28386654 in words is "twenty-eight million, three hundred eighty-six thousand, six hundred fifty-four".