247848 has 32 divisors (see below), whose sum is σ = 648000. Its totient is φ = 78848.

The previous prime is 247847. The next prime is 247853. The reversal of 247848 is 848742.

It is a super-2 number, since 2×247848² = 122857262208, which contains 22 as substring.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (247847) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 328 + ... + 776.

It is an arithmetic number, because the mean of its divisors is an integer number (20250).

2²⁴⁷⁸⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324000).

247848 is an abundant number, since it is smaller than the sum of its proper divisors (400152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247848 is a wasteful number, since it uses less digits than its factorization.

247848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 477 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 247848 is about 497.8433488558. The cubic root of 247848 is about 62.8147746757.

The spelling of 247848 in words is "two hundred forty-seven thousand, eight hundred forty-eight".