28869107 has 2 divisors, whose sum is σ = 28869108. Its totient is φ = 28869106.

The previous prime is 28869103. The next prime is 28869109. The reversal of 28869107 is 70196882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28869107 - 2² = 28869103 is a prime.

Together with 28869109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28869101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14434553 + 14434554.

It is an arithmetic number, because the mean of its divisors is an integer number (14434554).

Almost surely, 2^28869107 is an apocalyptic number.

28869107 is a deficient number, since it is larger than the sum of its proper divisors (1).

28869107 is an equidigital number, since it uses as much as digits as its factorization.

28869107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 28869107 is about 5372.9979527262. The cubic root of 28869107 is about 306.7687500149.

The spelling of 28869107 in words is "twenty-eight million, eight hundred sixty-nine thousand, one hundred seven".