248303689 has 2 divisors, whose sum is σ = 248303690. Its totient is φ = 248303688.

The previous prime is 248303641. The next prime is 248303701. The reversal of 248303689 is 986303842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142563600 + 105740089 = 11940^2 + 10283^2 .

It is a cyclic number.

It is not a de Polignac number, because 248303689 - 2⁹ = 248303177 is a prime.

It is not a weakly prime, because it can be changed into another prime (248303089) 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, 124151844 + 124151845.

It is an arithmetic number, because the mean of its divisors is an integer number (124151845).

Almost surely, 2^248303689 is an apocalyptic number.

It is an amenable number.

248303689 is a deficient number, since it is larger than the sum of its proper divisors (1).

248303689 is an equidigital number, since it uses as much as digits as its factorization.

248303689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 248303689 is about 15757.6549333967. The cubic root of 248303689 is about 628.5324782215.

The spelling of 248303689 in words is "two hundred forty-eight million, three hundred three thousand, six hundred eighty-nine".