28843392 has 64 divisors (see below), whose sum is σ = 79119360. Its totient is φ = 9300480.

The previous prime is 28843391. The next prime is 28843393. The reversal of 28843392 is 29334882.

It is an interprime number because it is at equal distance from previous prime (28843391) and next prime (28843393).

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

It is a self number, because there is not a number n which added to its sum of digits gives 28843392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28843391) 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, 10693 + ... + 13115.

It is an arithmetic number, because the mean of its divisors is an integer number (1236240).

Almost surely, 2^28843392 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 28843392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39559680).

28843392 is an abundant number, since it is smaller than the sum of its proper divisors (50275968).

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

28843392 is a wasteful number, since it uses less digits than its factorization.

28843392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2459 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 28843392 is about 5370.6044352568. The cubic root of 28843392 is about 306.6776387589.

The spelling of 28843392 in words is "twenty-eight million, eight hundred forty-three thousand, three hundred ninety-two".