248791 has 8 divisors (see below), whose sum is σ = 269280. Its totient is φ = 229152.

The previous prime is 248789. The next prime is 248797. The reversal of 248791 is 197842.

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

It is a cyclic number.

It is not a de Polignac number, because 248791 - 2¹ = 248789 is a prime.

It is a Duffinian number.

248791 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248797) 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 in 7 ways as a sum of consecutive naturals, for example, 481 + ... + 853.

It is an arithmetic number, because the mean of its divisors is an integer number (33660).

2²⁴⁸⁷⁹¹ is an apocalyptic number.

248791 is a deficient number, since it is larger than the sum of its proper divisors (20489).

248791 is a wasteful number, since it uses less digits than its factorization.

248791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425.

The product of its digits is 4032, while the sum is 31.

The square root of 248791 is about 498.7895347739. The cubic root of 248791 is about 62.8943387189.

The spelling of 248791 in words is "two hundred forty-eight thousand, seven hundred ninety-one".