248923 has 4 divisors (see below), whose sum is σ = 250240. Its totient is φ = 247608.

The previous prime is 248909. The next prime is 248971. The reversal of 248923 is 329842.

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 248923 - 2⁵ = 248891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248891 and 248900.

It is not an unprimeable number, because it can be changed into a prime (248903) 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, 315 + ... + 772.

It is an arithmetic number, because the mean of its divisors is an integer number (62560).

2²⁴⁸⁹²³ is an apocalyptic number.

248923 is a deficient number, since it is larger than the sum of its proper divisors (1317).

248923 is a wasteful number, since it uses less digits than its factorization.

248923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316.

The product of its digits is 3456, while the sum is 28.

The square root of 248923 is about 498.9218375658. The cubic root of 248923 is about 62.9054599477.

The spelling of 248923 in words is "two hundred forty-eight thousand, nine hundred twenty-three".