28858896 has 80 divisors (see below), whose sum is σ = 90381120. Its totient is φ = 8743680.

The previous prime is 28858889. The next prime is 28858901. The reversal of 28858896 is 69885882.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1716 + ... + 7788.

It is an arithmetic number, because the mean of its divisors is an integer number (1129764).

Almost surely, 2^28858896 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 28858896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45190560).

28858896 is an abundant number, since it is smaller than the sum of its proper divisors (61522224).

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

28858896 is a wasteful number, since it uses less digits than its factorization.

28858896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101 (or 6089 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 28858896 is about 5372.0476542935. The cubic root of 28858896 is about 306.7325777254.

It can be divided in two parts, 2885 and 8896, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 28858896 in words is "twenty-eight million, eight hundred fifty-eight thousand, eight hundred ninety-six".