28028107 has 2 divisors, whose sum is σ = 28028108. Its totient is φ = 28028106.

The previous prime is 28028101. The next prime is 28028141. The reversal of 28028107 is 70182082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28028107 - 2¹⁵ = 27995339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28028101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14014053 + 14014054.

It is an arithmetic number, because the mean of its divisors is an integer number (14014054).

Almost surely, 2^28028107 is an apocalyptic number.

28028107 is a deficient number, since it is larger than the sum of its proper divisors (1).

28028107 is an equidigital number, since it uses as much as digits as its factorization.

28028107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 28028107 is about 5294.1578178215. The cubic root of 28028107 is about 303.7604696443.

The spelling of 28028107 in words is "twenty-eight million, twenty-eight thousand, one hundred seven".