248440079 has 2 divisors, whose sum is σ = 248440080. Its totient is φ = 248440078.

The previous prime is 248440021. The next prime is 248440109. The reversal of 248440079 is 970044842.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248440079 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248440009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124220039 + 124220040.

It is an arithmetic number, because the mean of its divisors is an integer number (124220040).

Almost surely, 2^248440079 is an apocalyptic number.

248440079 is a deficient number, since it is larger than the sum of its proper divisors (1).

248440079 is an equidigital number, since it uses as much as digits as its factorization.

248440079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 248440079 is about 15761.9820771374. The cubic root of 248440079 is about 628.6475387399.

The spelling of 248440079 in words is "two hundred forty-eight million, four hundred forty thousand, seventy-nine".