28903876 has 12 divisors (see below), whose sum is σ = 53557308. Its totient is φ = 13601792.

The previous prime is 28903871. The next prime is 28903909. The reversal of 28903876 is 67830982.

It can be written as a sum of positive squares in 2 ways, for example, as 22278400 + 6625476 = 4720^2 + 2574^2 .

It is not an unprimeable number, because it can be changed into a prime (28903871) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 212461 + ... + 212596.

It is an arithmetic number, because the mean of its divisors is an integer number (4463109).

Almost surely, 2^28903876 is an apocalyptic number.

It is an amenable number.

28903876 is a deficient number, since it is larger than the sum of its proper divisors (24653432).

28903876 is a wasteful number, since it uses less digits than its factorization.

28903876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425078 (or 425076 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 28903876 is about 5376.2325098530. The cubic root of 28903876 is about 306.8918546608.

The spelling of 28903876 in words is "twenty-eight million, nine hundred three thousand, eight hundred seventy-six".