248857 has 8 divisors (see below), whose sum is σ = 288896. Its totient is φ = 209952.

The previous prime is 248851. The next prime is 248861. The reversal of 248857 is 758842.

248857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 8-Lehmer number, since φ(248857) divides (248857-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 248857 - 2¹¹ = 246809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248851) 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, 268 + ... + 754.

It is an arithmetic number, because the mean of its divisors is an integer number (36112).

2²⁴⁸⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

248857 is a deficient number, since it is larger than the sum of its proper divisors (40039).

248857 is an equidigital number, since it uses as much as digits as its factorization.

248857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its digits is 17920, while the sum is 34.

The square root of 248857 is about 498.8556905559. The cubic root of 248857 is about 62.8998998249.

The spelling of 248857 in words is "two hundred forty-eight thousand, eight hundred fifty-seven".