28952113 has 2 divisors, whose sum is σ = 28952114. Its totient is φ = 28952112.

The previous prime is 28952111. The next prime is 28952137. The reversal of 28952113 is 31125982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26337424 + 2614689 = 5132^2 + 1617^2 .

It is a cyclic number.

It is not a de Polignac number, because 28952113 - 2¹ = 28952111 is a prime.

Together with 28952111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28952111) 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, 14476056 + 14476057.

It is an arithmetic number, because the mean of its divisors is an integer number (14476057).

Almost surely, 2^28952113 is an apocalyptic number.

It is an amenable number.

28952113 is a deficient number, since it is larger than the sum of its proper divisors (1).

28952113 is an equidigital number, since it uses as much as digits as its factorization.

28952113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 28952113 is about 5380.7167738137. The cubic root of 28952113 is about 307.0624813146.

The spelling of 28952113 in words is "twenty-eight million, nine hundred fifty-two thousand, one hundred thirteen".