28830556 has 12 divisors (see below), whose sum is σ = 50710968. Its totient is φ = 14341712.

The previous prime is 28830539. The next prime is 28830563. The reversal of 28830556 is 65503882.

It is a congruent number.

It is an unprimeable number.

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, 17506 + ... + 19081.

It is an arithmetic number, because the mean of its divisors is an integer number (4225914).

Almost surely, 2^28830556 is an apocalyptic number.

It is an amenable number.

28830556 is a deficient number, since it is larger than the sum of its proper divisors (21880412).

28830556 is a wasteful number, since it uses less digits than its factorization.

28830556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36788 (or 36786 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 28830556 is about 5369.4092784961. The cubic root of 28830556 is about 306.6321390448.

It can be divided in two parts, 28 and 830556, that added together give a cube (830584 = 94³).

The spelling of 28830556 in words is "twenty-eight million, eight hundred thirty thousand, five hundred fifty-six".