248691 has 8 divisors (see below), whose sum is σ = 349120. Its totient is φ = 157032.

The previous prime is 248683. The next prime is 248701. The reversal of 248691 is 196842.

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

It is not a de Polignac number, because 248691 - 2³ = 248683 is a prime.

It is a Duffinian number.

248691 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 248691.

It is not an unprimeable number, because it can be changed into a prime (248621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125 + ... + 2238.

It is an arithmetic number, because the mean of its divisors is an integer number (43640).

2²⁴⁸⁶⁹¹ is an apocalyptic number.

248691 is a deficient number, since it is larger than the sum of its proper divisors (100429).

248691 is a wasteful number, since it uses less digits than its factorization.

248691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385.

The product of its digits is 3456, while the sum is 30.

The square root of 248691 is about 498.6892820184. The cubic root of 248691 is about 62.8859109264.

It can be divided in two parts, 248 and 691, that added together give a palindrome (939).

The spelling of 248691 in words is "two hundred forty-eight thousand, six hundred ninety-one".