28302876 has 72 divisors (see below), whose sum is σ = 84424704. Its totient is φ = 7823520.

The previous prime is 28302851. The next prime is 28302899. The reversal of 28302876 is 67820382.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28302876.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6001 + ... + 9623.

Almost surely, 2^28302876 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 28302876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42212352).

28302876 is an abundant number, since it is smaller than the sum of its proper divisors (56121828).

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

28302876 is a wasteful number, since it uses less digits than its factorization.

28302876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671 (or 3666 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 28302876 is about 5320.0447366540. The cubic root of 28302876 is about 304.7498656873.

The spelling of 28302876 in words is "twenty-eight million, three hundred two thousand, eight hundred seventy-six".