28633296 has 40 divisors (see below), whose sum is σ = 74638080. Its totient is φ = 9458176.

The previous prime is 28633291. The next prime is 28633331. The reversal of 28633296 is 69233682.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28633291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2785 + ... + 8063.

It is an arithmetic number, because the mean of its divisors is an integer number (1865952).

Almost surely, 2^28633296 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 28633296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37319040).

28633296 is an abundant number, since it is smaller than the sum of its proper divisors (46004784).

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

28633296 is a wasteful number, since it uses less digits than its factorization.

28633296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403 (or 5397 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 28633296 is about 5351.0088768381. The cubic root of 28633296 is about 305.9312075697.

The spelling of 28633296 in words is "twenty-eight million, six hundred thirty-three thousand, two hundred ninety-six".