28339804 has 6 divisors (see below), whose sum is σ = 49594664. Its totient is φ = 14169900.

The previous prime is 28339781. The next prime is 28339813. The reversal of 28339804 is 40893382.

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 as a sum of consecutive naturals, namely, 3542472 + ... + 3542479.

Almost surely, 2^28339804 is an apocalyptic number.

It is an amenable number.

28339804 is a deficient number, since it is larger than the sum of its proper divisors (21254860).

28339804 is a wasteful number, since it uses less digits than its factorization.

28339804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084955 (or 7084953 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 28339804 is about 5323.5142528221. The cubic root of 28339804 is about 304.8823482442.

The spelling of 28339804 in words is "twenty-eight million, three hundred thirty-nine thousand, eight hundred four".