28883976 has 64 divisors (see below), whose sum is σ = 80930880. Its totient is φ = 8513280.

The previous prime is 28883963. The next prime is 28884017. The reversal of 28883976 is 67938882.

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 15 ways as a sum of consecutive naturals, for example, 8290 + ... + 11246.

It is an arithmetic number, because the mean of its divisors is an integer number (1264545).

Almost surely, 2^28883976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28883976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40465440).

28883976 is an abundant number, since it is smaller than the sum of its proper divisors (52046904).

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

28883976 is a wasteful number, since it uses less digits than its factorization.

28883976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014 (or 3010 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 28883976 is about 5374.3814527813. The cubic root of 28883976 is about 306.8214079381.

The spelling of 28883976 in words is "twenty-eight million, eight hundred eighty-three thousand, nine hundred seventy-six".