248617 has 4 divisors (see below), whose sum is σ = 257220. Its totient is φ = 240016.

The previous prime is 248609. The next prime is 248621. The reversal of 248617 is 716842.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104976 + 143641 = 324^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 248617 - 2³ = 248609 is a prime.

It is a super-3 number, since 3×248617³ = 46101358114503339, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (248627) 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, 4258 + ... + 4315.

It is an arithmetic number, because the mean of its divisors is an integer number (64305).

2²⁴⁸⁶¹⁷ is an apocalyptic number.

It is an amenable number.

248617 is a deficient number, since it is larger than the sum of its proper divisors (8603).

248617 is an equidigital number, since it uses as much as digits as its factorization.

248617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8602.

The product of its digits is 2688, while the sum is 28.

The square root of 248617 is about 498.6150820021. The cubic root of 248617 is about 62.8796729054.

The spelling of 248617 in words is "two hundred forty-eight thousand, six hundred seventeen".