28076423 has 2 divisors, whose sum is σ = 28076424. Its totient is φ = 28076422.

The previous prime is 28076407. The next prime is 28076449. The reversal of 28076423 is 32467082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28076423 - 2⁴ = 28076407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28076423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28076473) 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, 14038211 + 14038212.

It is an arithmetic number, because the mean of its divisors is an integer number (14038212).

Almost surely, 2^28076423 is an apocalyptic number.

28076423 is a deficient number, since it is larger than the sum of its proper divisors (1).

28076423 is an equidigital number, since it uses as much as digits as its factorization.

28076423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 28076423 is about 5298.7189961348. The cubic root of 28076423 is about 303.9349143616.

The spelling of 28076423 in words is "twenty-eight million, seventy-six thousand, four hundred twenty-three".