28803936 has 48 divisors (see below), whose sum is σ = 86413824. Its totient is φ = 8229504.

The previous prime is 28803917. The next prime is 28803941. The reversal of 28803936 is 63930882.

It is a tau number, because it is divible by the number of its divisors (48).

28803936 is a modest number, since divided by 3936 gives 288 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 28803894 and 28803903.

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, 20760 + ... + 22103.

It is an arithmetic number, because the mean of its divisors is an integer number (1800288).

Almost surely, 2^28803936 is an apocalyptic number.

It is an amenable number.

28803936 is an abundant number, since it is smaller than the sum of its proper divisors (57609888).

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

28803936 is a wasteful number, since it uses less digits than its factorization.

28803936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42883 (or 42875 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 28803936 is about 5366.9298486192. The cubic root of 28803936 is about 306.5377361821.

The spelling of 28803936 in words is "twenty-eight million, eight hundred three thousand, nine hundred thirty-six".