4986439 has 2 divisors, whose sum is σ = 4986440. Its totient is φ = 4986438.

The previous prime is 4986431. The next prime is 4986481. The reversal of 4986439 is 9346894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4986439 - 2³ = 4986431 is a prime.

4986439 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4986395 and 4986404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4986431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493219 + 2493220.

It is an arithmetic number, because the mean of its divisors is an integer number (2493220).

Almost surely, 2^4986439 is an apocalyptic number.

4986439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4986439 is an equidigital number, since it uses as much as digits as its factorization.

4986439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 4986439 is about 2233.0335868500. The cubic root of 4986439 is about 170.8428614687.

The spelling of 4986439 in words is "four million, nine hundred eighty-six thousand, four hundred thirty-nine".