4878239 has 2 divisors, whose sum is σ = 4878240. Its totient is φ = 4878238.

The previous prime is 4878233. The next prime is 4878241. The reversal of 4878239 is 9328784.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4878239 is a prime.

It is a super-2 number, since 2×4878239² = 47594431482242, which contains 22 as substring.

Together with 4878241, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4878196 and 4878205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4878233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439119 + 2439120.

It is an arithmetic number, because the mean of its divisors is an integer number (2439120).

Almost surely, 2^4878239 is an apocalyptic number.

4878239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4878239 is an equidigital number, since it uses as much as digits as its factorization.

4878239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 4878239 is about 2208.6735838507. The cubic root of 4878239 is about 169.5981164314.

It can be divided in two parts, 48 and 78239, that added together give a palindrome (78287).

The spelling of 4878239 in words is "four million, eight hundred seventy-eight thousand, two hundred thirty-nine".