28927836 has 162 divisors, whose sum is σ = 91789152. Its totient is φ = 7650720.

The previous prime is 28927817. The next prime is 28927879. The reversal of 28927836 is 63872982.

It is a junction number, because it is equal to n+sod(n) for n = 28927791 and 28927800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 933141 + ... + 933171.

Almost surely, 2^28927836 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 28927836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45894576).

28927836 is an abundant number, since it is smaller than the sum of its proper divisors (62861316).

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

28927836 is a wasteful number, since it uses less digits than its factorization.

28927836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 66 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 28927836 is about 5378.4603744938. The cubic root of 28927836 is about 306.9766310413.

The spelling of 28927836 in words is "twenty-eight million, nine hundred twenty-seven thousand, eight hundred thirty-six".