28363823 has 2 divisors, whose sum is σ = 28363824. Its totient is φ = 28363822.

The previous prime is 28363817. The next prime is 28363849. The reversal of 28363823 is 32836382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28363823 - 2⁸ = 28363567 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28363813) 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, 14181911 + 14181912.

It is an arithmetic number, because the mean of its divisors is an integer number (14181912).

Almost surely, 2^28363823 is an apocalyptic number.

28363823 is a deficient number, since it is larger than the sum of its proper divisors (1).

28363823 is an equidigital number, since it uses as much as digits as its factorization.

28363823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 28363823 is about 5325.7697096288. The cubic root of 28363823 is about 304.9684568293.

The spelling of 28363823 in words is "twenty-eight million, three hundred sixty-three thousand, eight hundred twenty-three".