4939009 has 4 divisors (see below), whose sum is σ = 4946004. Its totient is φ = 4932016.

The previous prime is 4939003. The next prime is 4939021. The reversal of 4939009 is 9009394.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2166784 + 2772225 = 1472^2 + 1665^2 .

It is a cyclic number.

It is not a de Polignac number, because 4939009 - 2⁷ = 4938881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4939003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2302 + ... + 3895.

It is an arithmetic number, because the mean of its divisors is an integer number (1236501).

Almost surely, 2^4939009 is an apocalyptic number.

It is an amenable number.

4939009 is a deficient number, since it is larger than the sum of its proper divisors (6995).

4939009 is an equidigital number, since it uses as much as digits as its factorization.

4939009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6994.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 4939009 is about 2222.3881299179. The cubic root of 4939009 is about 170.2994606464.

The spelling of 4939009 in words is "four million, nine hundred thirty-nine thousand, nine".