28877873 has 2 divisors, whose sum is σ = 28877874. Its totient is φ = 28877872.

The previous prime is 28877869. The next prime is 28877887. The reversal of 28877873 is 37877882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24522304 + 4355569 = 4952^2 + 2087^2 .

It is a cyclic number.

It is not a de Polignac number, because 28877873 - 2² = 28877869 is a prime.

It is not a weakly prime, because it can be changed into another prime (28877843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14438936 + 14438937.

It is an arithmetic number, because the mean of its divisors is an integer number (14438937).

Almost surely, 2^28877873 is an apocalyptic number.

It is an amenable number.

28877873 is a deficient number, since it is larger than the sum of its proper divisors (1).

28877873 is an equidigital number, since it uses as much as digits as its factorization.

28877873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1053696, while the sum is 50.

The square root of 28877873 is about 5373.8136365155. The cubic root of 28877873 is about 306.7997966134.

Subtracting 28877873 from its reverse (37877882), we obtain a palindrome (9000009).

The spelling of 28877873 in words is "twenty-eight million, eight hundred seventy-seven thousand, eight hundred seventy-three".