28199076 has 24 divisors (see below), whose sum is σ = 66166464. Its totient is φ = 9347040.

The previous prime is 28199053. The next prime is 28199089. The reversal of 28199076 is 67099182.

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, 4320 + ... + 8663.

It is an arithmetic number, because the mean of its divisors is an integer number (2756936).

Almost surely, 2^28199076 is an apocalyptic number.

It is an amenable number.

28199076 is an abundant number, since it is smaller than the sum of its proper divisors (37967388).

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

28199076 is a wasteful number, since it uses less digits than its factorization.

28199076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13171 (or 13169 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 28199076 is about 5310.2802185949. The cubic root of 28199076 is about 304.3768554659.

The spelling of 28199076 in words is "twenty-eight million, one hundred ninety-nine thousand, seventy-six".