248005839 has 4 divisors (see below), whose sum is σ = 330674456. Its totient is φ = 165337224.

The previous prime is 248005837. The next prime is 248005853. The reversal of 248005839 is 938500842.

It is a happy number.

248005839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 248005839 - 2¹ = 248005837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248005797 and 248005806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248005831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41334304 + ... + 41334309.

It is an arithmetic number, because the mean of its divisors is an integer number (82668614).

Almost surely, 2^248005839 is an apocalyptic number.

248005839 is a deficient number, since it is larger than the sum of its proper divisors (82668617).

248005839 is an equidigital number, since it uses as much as digits as its factorization.

248005839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82668616.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 248005839 is about 15748.2011353678. The cubic root of 248005839 is about 628.2810612250.

The spelling of 248005839 in words is "two hundred forty-eight million, five thousand, eight hundred thirty-nine".