3099409 has 2 divisors, whose sum is σ = 3099410. Its totient is φ = 3099408.

The previous prime is 3099403. The next prime is 3099419. The reversal of 3099409 is 9049903.

3099409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2772225 + 327184 = 1665^2 + 572^2 .

It is a cyclic number.

It is not a de Polignac number, because 3099409 - 2¹³ = 3091217 is a prime.

It is a super-2 number, since 2×3099409² = 19212672298562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3099403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1549704 + 1549705.

It is an arithmetic number, because the mean of its divisors is an integer number (1549705).

Almost surely, 2^3099409 is an apocalyptic number.

It is an amenable number.

3099409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3099409 is an equidigital number, since it uses as much as digits as its factorization.

3099409 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3099409 is about 1760.5138454440. The cubic root of 3099409 is about 145.8007070051.

The spelling of 3099409 in words is "three million, ninety-nine thousand, four hundred nine".