248718287 has 4 divisors (see below), whose sum is σ = 248843616. Its totient is φ = 248592960.

The previous prime is 248718247. The next prime is 248718293. The reversal of 248718287 is 782817842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 248718287 - 2¹⁰ = 248717263 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 (248718247) 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 3 ways as a sum of consecutive naturals, for example, 59639 + ... + 63672.

It is an arithmetic number, because the mean of its divisors is an integer number (62210904).

Almost surely, 2^248718287 is an apocalyptic number.

248718287 is a deficient number, since it is larger than the sum of its proper divisors (125329).

248718287 is a wasteful number, since it uses less digits than its factorization.

248718287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125328.

The product of its digits is 401408, while the sum is 47.

The square root of 248718287 is about 15770.8048938537. The cubic root of 248718287 is about 628.8821084226.

The spelling of 248718287 in words is "two hundred forty-eight million, seven hundred eighteen thousand, two hundred eighty-seven".