28338701 has 2 divisors, whose sum is σ = 28338702. Its totient is φ = 28338700.

The previous prime is 28338689. The next prime is 28338719. The reversal of 28338701 is 10783382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18913801 + 9424900 = 4349^2 + 3070^2 .

It is a cyclic number.

It is not a de Polignac number, because 28338701 - 2⁶ = 28338637 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28338901) 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, 14169350 + 14169351.

It is an arithmetic number, because the mean of its divisors is an integer number (14169351).

Almost surely, 2^28338701 is an apocalyptic number.

It is an amenable number.

28338701 is a deficient number, since it is larger than the sum of its proper divisors (1).

28338701 is an equidigital number, since it uses as much as digits as its factorization.

28338701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 28338701 is about 5323.4106548340. The cubic root of 28338701 is about 304.8783927994.

The spelling of 28338701 in words is "twenty-eight million, three hundred thirty-eight thousand, seven hundred one".