248917 has 4 divisors (see below), whose sum is σ = 252000. Its totient is φ = 245836.

The previous prime is 248909. The next prime is 248971. The reversal of 248917 is 719842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 248917 - 2³ = 248909 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 (248987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1417 + ... + 1582.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2²⁴⁸⁹¹⁷ is an apocalyptic number.

It is an amenable number.

248917 is a deficient number, since it is larger than the sum of its proper divisors (3083).

248917 is an equidigital number, since it uses as much as digits as its factorization.

248917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082.

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

The square root of 248917 is about 498.9158245636. The cubic root of 248917 is about 62.9049545226.

The spelling of 248917 in words is "two hundred forty-eight thousand, nine hundred seventeen".