28876877 has 2 divisors, whose sum is σ = 28876878. Its totient is φ = 28876876.

The previous prime is 28876873. The next prime is 28876919. The reversal of 28876877 is 77867882.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24098281 + 4778596 = 4909^2 + 2186^2 .

It is a cyclic number.

It is not a de Polignac number, because 28876877 - 2² = 28876873 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28876873) 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, 14438438 + 14438439.

It is an arithmetic number, because the mean of its divisors is an integer number (14438439).

Almost surely, 2^28876877 is an apocalyptic number.

It is an amenable number.

28876877 is a deficient number, since it is larger than the sum of its proper divisors (1).

28876877 is an equidigital number, since it uses as much as digits as its factorization.

28876877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2107392, while the sum is 53.

The square root of 28876877 is about 5373.7209640993. The cubic root of 28876877 is about 306.7962693902.

The spelling of 28876877 in words is "twenty-eight million, eight hundred seventy-six thousand, eight hundred seventy-seven".