28385011 has 2 divisors, whose sum is σ = 28385012. Its totient is φ = 28385010.

The previous prime is 28385003. The next prime is 28385023. The reversal of 28385011 is 11058382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28385011 - 2³ = 28385003 is a prime.

It is not a weakly prime, because it can be changed into another prime (28385081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14192505 + 14192506.

It is an arithmetic number, because the mean of its divisors is an integer number (14192506).

Almost surely, 2^28385011 is an apocalyptic number.

28385011 is a deficient number, since it is larger than the sum of its proper divisors (1).

28385011 is an equidigital number, since it uses as much as digits as its factorization.

28385011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 28385011 is about 5327.7585343182. The cubic root of 28385011 is about 305.0443758777.

The spelling of 28385011 in words is "twenty-eight million, three hundred eighty-five thousand, eleven".