28536113 has 2 divisors, whose sum is σ = 28536114. Its totient is φ = 28536112.

The previous prime is 28536083. The next prime is 28536121. The reversal of 28536113 is 31163582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17698849 + 10837264 = 4207^2 + 3292^2 .

It is a cyclic number.

It is not a de Polignac number, because 28536113 - 2⁶ = 28536049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28536173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14268056 + 14268057.

It is an arithmetic number, because the mean of its divisors is an integer number (14268057).

Almost surely, 2^28536113 is an apocalyptic number.

It is an amenable number.

28536113 is a deficient number, since it is larger than the sum of its proper divisors (1).

28536113 is an equidigital number, since it uses as much as digits as its factorization.

28536113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 28536113 is about 5341.9203475904. The cubic root of 28536113 is about 305.5846994032.

Adding to 28536113 its reverse (31163582), we get a palindrome (59699695).

The spelling of 28536113 in words is "twenty-eight million, five hundred thirty-six thousand, one hundred thirteen".