28555004 has 6 divisors (see below), whose sum is σ = 49971264. Its totient is φ = 14277500.

The previous prime is 28554979. The next prime is 28555049. The reversal of 28555004 is 40055582.

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 as a sum of consecutive naturals, namely, 3569372 + ... + 3569379.

It is an arithmetic number, because the mean of its divisors is an integer number (8328544).

Almost surely, 2^28555004 is an apocalyptic number.

It is an amenable number.

28555004 is a deficient number, since it is larger than the sum of its proper divisors (21416260).

28555004 is a wasteful number, since it uses less digits than its factorization.

28555004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138755 (or 7138753 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 28555004 is about 5343.6882394092. The cubic root of 28555004 is about 305.6521172181.

The spelling of 28555004 in words is "twenty-eight million, five hundred fifty-five thousand, four".