248666 has 16 divisors (see below), whose sum is σ = 414720. Its totient is φ = 110880.

The previous prime is 248657. The next prime is 248683. The reversal of 248666 is 666842.

It is a happy number.

248666 is a modest number, since divided by 666 gives 248 as remainder.

It is a plaindrome in base 14.

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 248666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1895 + ... + 2021.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2²⁴⁸⁶⁶⁶ is an apocalyptic number.

248666 is a deficient number, since it is larger than the sum of its proper divisors (166054).

248666 is a wasteful number, since it uses less digits than its factorization.

248666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229.

The product of its digits is 13824, while the sum is 32.

The square root of 248666 is about 498.6642156803. The cubic root of 248666 is about 62.8838036253.

It can be divided in two parts, 2486 and 66, that added together give a palindrome (2552).

The spelling of 248666 in words is "two hundred forty-eight thousand, six hundred sixty-six".