248647 has 4 divisors (see below), whose sum is σ = 284176. Its totient is φ = 213120.

The previous prime is 248641. The next prime is 248657. The reversal of 248647 is 746842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 248647 - 2³ = 248639 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17754 + ... + 17767.

It is an arithmetic number, because the mean of its divisors is an integer number (71044).

2²⁴⁸⁶⁴⁷ is an apocalyptic number.

248647 is a deficient number, since it is larger than the sum of its proper divisors (35529).

248647 is an equidigital number, since it uses as much as digits as its factorization.

248647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35528.

The product of its digits is 10752, while the sum is 31.

The square root of 248647 is about 498.6451644206. The cubic root of 248647 is about 62.8822019820.

The spelling of 248647 in words is "two hundred forty-eight thousand, six hundred forty-seven".