8648839 has 2 divisors, whose sum is σ = 8648840. Its totient is φ = 8648838.

The previous prime is 8648837. The next prime is 8648863. The reversal of 8648839 is 9388468.

8648839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8648839 - 2¹ = 8648837 is a prime.

Together with 8648837, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8648831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4324419 + 4324420.

It is an arithmetic number, because the mean of its divisors is an integer number (4324420).

Almost surely, 2^8648839 is an apocalyptic number.

8648839 is a deficient number, since it is larger than the sum of its proper divisors (1).

8648839 is an equidigital number, since it uses as much as digits as its factorization.

8648839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 46.

The square root of 8648839 is about 2940.8908514258. The cubic root of 8648839 is about 205.2670641851.

The spelling of 8648839 in words is "eight million, six hundred forty-eight thousand, eight hundred thirty-nine".