4639709 has 2 divisors, whose sum is σ = 4639710. Its totient is φ = 4639708.

The previous prime is 4639703. The next prime is 4639717. The reversal of 4639709 is 9079364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4305625 + 334084 = 2075^2 + 578^2 .

It is a cyclic number.

It is not a de Polignac number, because 4639709 - 2⁴ = 4639693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4639703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2319854 + 2319855.

It is an arithmetic number, because the mean of its divisors is an integer number (2319855).

Almost surely, 2^4639709 is an apocalyptic number.

It is an amenable number.

4639709 is a deficient number, since it is larger than the sum of its proper divisors (1).

4639709 is an equidigital number, since it uses as much as digits as its factorization.

4639709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 4639709 is about 2153.9983751155. The cubic root of 4639709 is about 166.7875314402.

The spelling of 4639709 in words is "four million, six hundred thirty-nine thousand, seven hundred nine".