28099876 has 24 divisors (see below), whose sum is σ = 56460096. Its totient is φ = 11987040.

The previous prime is 28099853. The next prime is 28099889. The reversal of 28099876 is 67899082.

It is a happy number.

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, 4146 + ... + 8566.

It is an arithmetic number, because the mean of its divisors is an integer number (2352504).

Almost surely, 2^28099876 is an apocalyptic number.

It is an amenable number.

28099876 is an abundant number, since it is smaller than the sum of its proper divisors (28360220).

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

28099876 is a wasteful number, since it uses less digits than its factorization.

28099876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659 (or 4657 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 28099876 is about 5300.9316162350. The cubic root of 28099876 is about 304.0195191761.

The spelling of 28099876 in words is "twenty-eight million, ninety-nine thousand, eight hundred seventy-six".