3049421 has 2 divisors, whose sum is σ = 3049422. Its totient is φ = 3049420.

The previous prime is 3049391. The next prime is 3049427. The reversal of 3049421 is 1249403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2706025 + 343396 = 1645^2 + 586^2 .

It is an emirp because it is prime and its reverse (1249403) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3049421 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3049427) 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, 1524710 + 1524711.

It is an arithmetic number, because the mean of its divisors is an integer number (1524711).

Almost surely, 2^3049421 is an apocalyptic number.

It is an amenable number.

3049421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3049421 is an equidigital number, since it uses as much as digits as its factorization.

3049421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3049421 is about 1746.2591445716. The cubic root of 3049421 is about 145.0126187988.

The spelling of 3049421 in words is "three million, forty-nine thousand, four hundred twenty-one".