248765 has 8 divisors (see below), whose sum is σ = 325728. Its totient is φ = 180880.

The previous prime is 248753. The next prime is 248779. The reversal of 248765 is 567842.

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

It is not a de Polignac number, because 248765 - 2⁴ = 248749 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

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, 2207 + ... + 2316.

It is an arithmetic number, because the mean of its divisors is an integer number (40716).

248765 is a Friedman number, since it can be written as (8*2-4)^5-67, using all its digits and the basic arithmetic operations.

2²⁴⁸⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

248765 is a deficient number, since it is larger than the sum of its proper divisors (76963).

248765 is a wasteful number, since it uses less digits than its factorization.

248765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539.

The product of its digits is 13440, while the sum is 32.

The square root of 248765 is about 498.7634709960. The cubic root of 248765 is about 62.8921477101.

It can be divided in two parts, 2487 and 65, that added together give a palindrome (2552).

The spelling of 248765 in words is "two hundred forty-eight thousand, seven hundred sixty-five".