28850771 has 2 divisors, whose sum is σ = 28850772. Its totient is φ = 28850770.

The previous prime is 28850749. The next prime is 28850777. The reversal of 28850771 is 17705882.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28850771 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28850777) 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, 14425385 + 14425386.

It is an arithmetic number, because the mean of its divisors is an integer number (14425386).

Almost surely, 2^28850771 is an apocalyptic number.

28850771 is a deficient number, since it is larger than the sum of its proper divisors (1).

28850771 is an equidigital number, since it uses as much as digits as its factorization.

28850771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 28850771 is about 5371.2913717280. The cubic root of 28850771 is about 306.7037889581.

The spelling of 28850771 in words is "twenty-eight million, eight hundred fifty thousand, seven hundred seventy-one".