28967232 has 84 divisors (see below), whose sum is σ = 89184480. Its totient is φ = 8273664.

The previous prime is 28967231. The next prime is 28967261. The reversal of 28967232 is 23276982.

It is a tau number, because it is divible by the number of its divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28967231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7869 + ... + 10947.

It is an arithmetic number, because the mean of its divisors is an integer number (1061720).

Almost surely, 2^28967232 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 28967232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44592240).

28967232 is an abundant number, since it is smaller than the sum of its proper divisors (60217248).

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

28967232 is a wasteful number, since it uses less digits than its factorization.

28967232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108 (or 3091 counting only the distinct ones).

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

The square root of 28967232 is about 5382.1215147932. The cubic root of 28967232 is about 307.1159220862.

The spelling of 28967232 in words is "twenty-eight million, nine hundred sixty-seven thousand, two hundred thirty-two".