248643 has 8 divisors (see below), whose sum is σ = 368400. Its totient is φ = 165744.

The previous prime is 248641. The next prime is 248657. The reversal of 248643 is 346842.

It is not a de Polignac number, because 248643 - 2¹ = 248641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9209 = 248643 / (2 + 4 + 8 + 6 + 4 + 3).

It is a d-powerful number, because it can be written as 2¹³ + 4⁴ + 6⁶ + 8 + 4⁷ + 3¹¹ .

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (248641) 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, 4578 + ... + 4631.

It is an arithmetic number, because the mean of its divisors is an integer number (46050).

2²⁴⁸⁶⁴³ is an apocalyptic number.

248643 is a deficient number, since it is larger than the sum of its proper divisors (119757).

248643 is an equidigital number, since it uses as much as digits as its factorization.

248643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9218 (or 9212 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 248643 is about 498.6411535363. The cubic root of 248643 is about 62.8818647836.

The spelling of 248643 in words is "two hundred forty-eight thousand, six hundred forty-three".