28876484 has 48 divisors (see below), whose sum is σ = 63504000. Its totient is φ = 11416608.

The previous prime is 28876483. The next prime is 28876499. The reversal of 28876484 is 48467882.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28876483) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17027 + ... + 18645.

It is an arithmetic number, because the mean of its divisors is an integer number (1323000).

Almost surely, 2^28876484 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 28876484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31752000).

28876484 is an abundant number, since it is smaller than the sum of its proper divisors (34627516).

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

28876484 is a wasteful number, since it uses less digits than its factorization.

28876484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1641 counting only the distinct ones).

The product of its digits is 688128, while the sum is 47.

The square root of 28876484 is about 5373.6843971339. The cubic root of 28876484 is about 306.7948776021.

The spelling of 28876484 in words is "twenty-eight million, eight hundred seventy-six thousand, four hundred eighty-four".