28884073 has 2 divisors, whose sum is σ = 28884074. Its totient is φ = 28884072.

The previous prime is 28884017. The next prime is 28884133. The reversal of 28884073 is 37048882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28697449 + 186624 = 5357^2 + 432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28884073 is a prime.

It is not a weakly prime, because it can be changed into another prime (28884473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14442036 + 14442037.

It is an arithmetic number, because the mean of its divisors is an integer number (14442037).

Almost surely, 2^28884073 is an apocalyptic number.

It is an amenable number.

28884073 is a deficient number, since it is larger than the sum of its proper divisors (1).

28884073 is an equidigital number, since it uses as much as digits as its factorization.

28884073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 28884073 is about 5374.3904770681. The cubic root of 28884073 is about 306.8217514001.

The spelling of 28884073 in words is "twenty-eight million, eight hundred eighty-four thousand, seventy-three".