248428843 has 4 divisors (see below), whose sum is σ = 267538768. Its totient is φ = 229318920.

The previous prime is 248428811. The next prime is 248428849. The reversal of 248428843 is 348824842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348824842 = 2 ⋅174412421.

It is a cyclic number.

It is not a de Polignac number, because 248428843 - 2⁵ = 248428811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 248428843.

It is not an unprimeable number, because it can be changed into a prime (248428849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9554943 + ... + 9554968.

It is an arithmetic number, because the mean of its divisors is an integer number (66884692).

Almost surely, 2^248428843 is an apocalyptic number.

248428843 is a deficient number, since it is larger than the sum of its proper divisors (19109925).

248428843 is a wasteful number, since it uses less digits than its factorization.

248428843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19109924.

The product of its digits is 393216, while the sum is 43.

The square root of 248428843 is about 15761.6256458527. The cubic root of 248428843 is about 628.6380614845.

The spelling of 248428843 in words is "two hundred forty-eight million, four hundred twenty-eight thousand, eight hundred forty-three".