247168 has 16 divisors (see below), whose sum is σ = 492660. Its totient is φ = 123520.

The previous prime is 247141. The next prime is 247183. The reversal of 247168 is 861742.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×247168² = 122184040448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838 + ... + 1093.

247168 is a Friedman number, since it can be written as 6^7-(8*4)^(2+1), using all its digits and the basic arithmetic operations.

2²⁴⁷¹⁶⁸ is an apocalyptic number.

It is an amenable number.

247168 is a deficient number, since it is larger than the sum of its proper divisors (245492).

247168 is an equidigital number, since it uses as much as digits as its factorization.

247168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945 (or 1933 counting only the distinct ones).

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

The square root of 247168 is about 497.1599340253. The cubic root of 247168 is about 62.7572754959.

The spelling of 247168 in words is "two hundred forty-seven thousand, one hundred sixty-eight".