28960871 has 2 divisors, whose sum is σ = 28960872. Its totient is φ = 28960870.

The previous prime is 28960859. The next prime is 28960873. The reversal of 28960871 is 17806982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28960871 - 2¹⁸ = 28698727 is a prime.

Together with 28960873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28960873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14480435 + 14480436.

It is an arithmetic number, because the mean of its divisors is an integer number (14480436).

Almost surely, 2^28960871 is an apocalyptic number.

28960871 is a deficient number, since it is larger than the sum of its proper divisors (1).

28960871 is an equidigital number, since it uses as much as digits as its factorization.

28960871 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 28960871 is about 5381.5305443712. The cubic root of 28960871 is about 307.0934402765.

The spelling of 28960871 in words is "twenty-eight million, nine hundred sixty thousand, eight hundred seventy-one".