4901009 has 2 divisors, whose sum is σ = 4901010. Its totient is φ = 4901008.

The previous prime is 4900999. The next prime is 4901021. The reversal of 4901009 is 9001094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4840000 + 61009 = 2200^2 + 247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4901009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₃₄₂₀₆₈ and since 4901009 and 342068 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (4901089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2450504 + 2450505.

It is an arithmetic number, because the mean of its divisors is an integer number (2450505).

Almost surely, 2^4901009 is an apocalyptic number.

It is an amenable number.

4901009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4901009 is an equidigital number, since it uses as much as digits as its factorization.

4901009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 4901009 is about 2213.8222602549. The cubic root of 4901009 is about 169.8615828305.

The spelling of 4901009 in words is "four million, nine hundred one thousand, nine".