28125079 has 2 divisors, whose sum is σ = 28125080. Its totient is φ = 28125078.

The previous prime is 28125061. The next prime is 28125103. The reversal of 28125079 is 97052182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28125079 - 2⁹ = 28124567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28125179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14062539 + 14062540.

It is an arithmetic number, because the mean of its divisors is an integer number (14062540).

Almost surely, 2^28125079 is an apocalyptic number.

28125079 is a deficient number, since it is larger than the sum of its proper divisors (1).

28125079 is an equidigital number, since it uses as much as digits as its factorization.

28125079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 28125079 is about 5303.3083070853. The cubic root of 28125079 is about 304.1103845156.

The spelling of 28125079 in words is "twenty-eight million, one hundred twenty-five thousand, seventy-nine".