28052107 has 2 divisors, whose sum is σ = 28052108. Its totient is φ = 28052106.

The previous prime is 28052099. The next prime is 28052119. The reversal of 28052107 is 70125082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28052107 - 2³ = 28052099 is a prime.

It is not a weakly prime, because it can be changed into another prime (28052197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14026053 + 14026054.

It is an arithmetic number, because the mean of its divisors is an integer number (14026054).

Almost surely, 2^28052107 is an apocalyptic number.

28052107 is a deficient number, since it is larger than the sum of its proper divisors (1).

28052107 is an equidigital number, since it uses as much as digits as its factorization.

28052107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 28052107 is about 5296.4239822733. The cubic root of 28052107 is about 303.8471465816.

Adding to 28052107 its reverse (70125082), we get a palindrome (98177189).

The spelling of 28052107 in words is "twenty-eight million, fifty-two thousand, one hundred seven".