28877796 has 60 divisors (see below), whose sum is σ = 79482480. Its totient is φ = 9117360.

The previous prime is 28877753. The next prime is 28877809. The reversal of 28877796 is 69777882.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3811 + ... + 8501.

It is an arithmetic number, because the mean of its divisors is an integer number (1324708).

Almost surely, 2^28877796 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 28877796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39741240).

28877796 is an abundant number, since it is smaller than the sum of its proper divisors (50604684).

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

28877796 is a wasteful number, since it uses less digits than its factorization.

28877796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726 (or 4715 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 28877796 is about 5373.8064721387. The cubic root of 28877796 is about 306.7995239294.

The spelling of 28877796 in words is "twenty-eight million, eight hundred seventy-seven thousand, seven hundred ninety-six".