28211296 has 24 divisors (see below), whose sum is σ = 58809240. Its totient is φ = 13275648.

The previous prime is 28211291. The next prime is 28211303. The reversal of 28211296 is 69211282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28211291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25386 + ... + 26473.

It is an arithmetic number, because the mean of its divisors is an integer number (2450385).

Almost surely, 2^28211296 is an apocalyptic number.

It is an amenable number.

28211296 is an abundant number, since it is smaller than the sum of its proper divisors (30597944).

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

28211296 is a wasteful number, since it uses less digits than its factorization.

28211296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51886 (or 51878 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 28211296 is about 5311.4306923841. The cubic root of 28211296 is about 304.4208161028.

The spelling of 28211296 in words is "twenty-eight million, two hundred eleven thousand, two hundred ninety-six".