28077853 has 2 divisors, whose sum is σ = 28077854. Its totient is φ = 28077852.

The previous prime is 28077851. The next prime is 28077869. The reversal of 28077853 is 35877082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22686169 + 5391684 = 4763^2 + 2322^2 .

It is a cyclic number.

It is not a de Polignac number, because 28077853 - 2¹ = 28077851 is a prime.

Together with 28077851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28077851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14038926 + 14038927.

It is an arithmetic number, because the mean of its divisors is an integer number (14038927).

Almost surely, 2^28077853 is an apocalyptic number.

It is an amenable number.

28077853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28077853 is an equidigital number, since it uses as much as digits as its factorization.

28077853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 28077853 is about 5298.8539326915. The cubic root of 28077853 is about 303.9400743203.

The spelling of 28077853 in words is "twenty-eight million, seventy-seven thousand, eight hundred fifty-three".