248839717 has 8 divisors (see below), whose sum is σ = 289754496. Its totient is φ = 209266512.

The previous prime is 248839711. The next prime is 248839729. The reversal of 248839717 is 717938842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 248839717 - 2⁷ = 248839589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248839711) 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 in 7 ways as a sum of consecutive naturals, for example, 334993 + ... + 335734.

It is an arithmetic number, because the mean of its divisors is an integer number (36219312).

Almost surely, 2^248839717 is an apocalyptic number.

It is an amenable number.

248839717 is a deficient number, since it is larger than the sum of its proper divisors (40914779).

248839717 is an equidigital number, since it uses as much as digits as its factorization.

248839717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670787.

The product of its digits is 677376, while the sum is 49.

The square root of 248839717 is about 15774.6542592857. The cubic root of 248839717 is about 628.9844366846.

The spelling of 248839717 in words is "two hundred forty-eight million, eight hundred thirty-nine thousand, seven hundred seventeen".