4951439 has 2 divisors, whose sum is σ = 4951440. Its totient is φ = 4951438.

The previous prime is 4951421. The next prime is 4951459. The reversal of 4951439 is 9341594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4951439 - 2⁸ = 4951183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4951399 and 4951408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4951409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475719 + 2475720.

It is an arithmetic number, because the mean of its divisors is an integer number (2475720).

Almost surely, 2^4951439 is an apocalyptic number.

4951439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4951439 is an equidigital number, since it uses as much as digits as its factorization.

4951439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 4951439 is about 2225.1829138298. The cubic root of 4951439 is about 170.4422051371.

The spelling of 4951439 in words is "four million, nine hundred fifty-one thousand, four hundred thirty-nine".