248507869 has 2 divisors, whose sum is σ = 248507870. Its totient is φ = 248507868.

The previous prime is 248507863. The next prime is 248507923. The reversal of 248507869 is 968705842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204776100 + 43731769 = 14310^2 + 6613^2 .

It is a cyclic number.

It is not a de Polignac number, because 248507869 - 2⁵ = 248507837 is a prime.

It is a super-2 number, since 2×248507869² = 123512321909842322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248507863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124253934 + 124253935.

It is an arithmetic number, because the mean of its divisors is an integer number (124253935).

Almost surely, 2^248507869 is an apocalyptic number.

It is an amenable number.

248507869 is a deficient number, since it is larger than the sum of its proper divisors (1).

248507869 is an equidigital number, since it uses as much as digits as its factorization.

248507869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 248507869 is about 15764.1323579828. The cubic root of 248507869 is about 628.7047116691.

The spelling of 248507869 in words is "two hundred forty-eight million, five hundred seven thousand, eight hundred sixty-nine".