28675811 has 2 divisors, whose sum is σ = 28675812. Its totient is φ = 28675810.

The previous prime is 28675771. The next prime is 28675813. The reversal of 28675811 is 11857682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28675811 - 2¹⁰ = 28674787 is a prime.

Together with 28675813, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1780859 and since 28675811 and 1780859 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (28675813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14337905 + 14337906.

It is an arithmetic number, because the mean of its divisors is an integer number (14337906).

Almost surely, 2^28675811 is an apocalyptic number.

28675811 is a deficient number, since it is larger than the sum of its proper divisors (1).

28675811 is an equidigital number, since it uses as much as digits as its factorization.

28675811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 38.

The square root of 28675811 is about 5354.9800186369. The cubic root of 28675811 is about 306.0825492469.

The spelling of 28675811 in words is "twenty-eight million, six hundred seventy-five thousand, eight hundred eleven".