28327296 has 64 divisors (see below), whose sum is σ = 76377600. Its totient is φ = 9300480.

The previous prime is 28327289. The next prime is 28327303. The reversal of 28327296 is 69272382.

It is an interprime number because it is at equal distance from previous prime (28327289) and next prime (28327303).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26745 + ... + 27783.

It is an arithmetic number, because the mean of its divisors is an integer number (1193400).

Almost surely, 2^28327296 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 28327296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38188800).

28327296 is an abundant number, since it is smaller than the sum of its proper divisors (48050304).

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

28327296 is a wasteful number, since it uses less digits than its factorization.

28327296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1115 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 28327296 is about 5322.3393352923. The cubic root of 28327296 is about 304.8374875531.

The spelling of 28327296 in words is "twenty-eight million, three hundred twenty-seven thousand, two hundred ninety-six".