28077593 has 2 divisors, whose sum is σ = 28077594. Its totient is φ = 28077592.

The previous prime is 28077571. The next prime is 28077601. The reversal of 28077593 is 39577082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19829209 + 8248384 = 4453^2 + 2872^2 .

It is a cyclic number.

It is not a de Polignac number, because 28077593 - 2⁶ = 28077529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28077593.

It is not a weakly prime, because it can be changed into another prime (28077563) 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, 14038796 + 14038797.

It is an arithmetic number, because the mean of its divisors is an integer number (14038797).

Almost surely, 2^28077593 is an apocalyptic number.

It is an amenable number.

28077593 is a deficient number, since it is larger than the sum of its proper divisors (1).

28077593 is an equidigital number, since it uses as much as digits as its factorization.

28077593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 28077593 is about 5298.8293990277. The cubic root of 28077593 is about 303.9391361590.

The spelling of 28077593 in words is "twenty-eight million, seventy-seven thousand, five hundred ninety-three".