28710313 has 2 divisors, whose sum is σ = 28710314. Its totient is φ = 28710312.

The previous prime is 28710301. The next prime is 28710337. The reversal of 28710313 is 31301782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18386944 + 10323369 = 4288^2 + 3213^2 .

It is a cyclic number.

It is not a de Polignac number, because 28710313 - 2⁹ = 28709801 is a prime.

It is not a weakly prime, because it can be changed into another prime (28710343) 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, 14355156 + 14355157.

It is an arithmetic number, because the mean of its divisors is an integer number (14355157).

Almost surely, 2^28710313 is an apocalyptic number.

It is an amenable number.

28710313 is a deficient number, since it is larger than the sum of its proper divisors (1).

28710313 is an equidigital number, since it uses as much as digits as its factorization.

28710313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 28710313 is about 5358.2005374939. The cubic root of 28710313 is about 306.2052569369.

The spelling of 28710313 in words is "twenty-eight million, seven hundred ten thousand, three hundred thirteen".