28004876 has 24 divisors (see below), whose sum is σ = 50048544. Its totient is φ = 13708800.

The previous prime is 28004857. The next prime is 28004887. The reversal of 28004876 is 67840082.

28004876 = T₁₄₃ + T₁₄₄ + ... + T₅₅₄.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41276 + ... + 41948.

It is an arithmetic number, because the mean of its divisors is an integer number (2085356).

Almost surely, 2^28004876 is an apocalyptic number.

It is an amenable number.

28004876 is a deficient number, since it is larger than the sum of its proper divisors (22043668).

28004876 is a wasteful number, since it uses less digits than its factorization.

28004876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 28004876 is about 5291.9633407649. The cubic root of 28004876 is about 303.6765228405.

The spelling of 28004876 in words is "twenty-eight million, four thousand, eight hundred seventy-six".