28853286 has 96 divisors (see below), whose sum is σ = 76370688. Its totient is φ = 7058880.

The previous prime is 28853263. The next prime is 28853291. The reversal of 28853286 is 68235882.

It is a super-2 number, since 2×28853286² = 1665024225995592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166696 + ... + 166868.

It is an arithmetic number, because the mean of its divisors is an integer number (795528).

Almost surely, 2^28853286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28853286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38185344).

28853286 is an abundant number, since it is smaller than the sum of its proper divisors (47517402).

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

28853286 is a wasteful number, since it uses less digits than its factorization.

28853286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 215 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 28853286 is about 5371.5254816486. The cubic root of 28853286 is about 306.7127007664.

The spelling of 28853286 in words is "twenty-eight million, eight hundred fifty-three thousand, two hundred eighty-six".