28077851 has 2 divisors, whose sum is σ = 28077852. Its totient is φ = 28077850.

The previous prime is 28077823. The next prime is 28077853. The reversal of 28077851 is 15877082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28077851 - 2⁶ = 28077787 is a prime.

Together with 28077853, 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 (28077853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14038925 + 14038926.

It is an arithmetic number, because the mean of its divisors is an integer number (14038926).

Almost surely, 2^28077851 is an apocalyptic number.

28077851 is a deficient number, since it is larger than the sum of its proper divisors (1).

28077851 is an equidigital number, since it uses as much as digits as its factorization.

28077851 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 28077851 is about 5298.8537439714. The cubic root of 28077851 is about 303.9400671037.

The spelling of 28077851 in words is "twenty-eight million, seventy-seven thousand, eight hundred fifty-one".