4686839 has 2 divisors, whose sum is σ = 4686840. Its totient is φ = 4686838.

The previous prime is 4686821. The next prime is 4686841. The reversal of 4686839 is 9386864.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4686839 is a prime.

Together with 4686841, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4686839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4676839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343419 + 2343420.

It is an arithmetic number, because the mean of its divisors is an integer number (2343420).

Almost surely, 2^4686839 is an apocalyptic number.

4686839 is a deficient number, since it is larger than the sum of its proper divisors (1).

4686839 is an equidigital number, since it uses as much as digits as its factorization.

4686839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 44.

The square root of 4686839 is about 2164.9108526681. The cubic root of 4686839 is about 167.3503705698.

The spelling of 4686839 in words is "four million, six hundred eighty-six thousand, eight hundred thirty-nine".