28843093 has 2 divisors, whose sum is σ = 28843094. Its totient is φ = 28843092.

The previous prime is 28843069. The next prime is 28843099. The reversal of 28843093 is 39034882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18130564 + 10712529 = 4258^2 + 3273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28843093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28843099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14421546 + 14421547.

It is an arithmetic number, because the mean of its divisors is an integer number (14421547).

Almost surely, 2^28843093 is an apocalyptic number.

It is an amenable number.

28843093 is a deficient number, since it is larger than the sum of its proper divisors (1).

28843093 is an equidigital number, since it uses as much as digits as its factorization.

28843093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 28843093 is about 5370.5765984669. The cubic root of 28843093 is about 306.6765790484.

The spelling of 28843093 in words is "twenty-eight million, eight hundred forty-three thousand, ninety-three".