344383421 has 2 divisors, whose sum is σ = 344383422. Its totient is φ = 344383420.

The previous prime is 344383409. The next prime is 344383423. The reversal of 344383421 is 124383443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343694521 + 688900 = 18539^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 344383421 - 2¹⁰ = 344382397 is a prime.

It is a Sophie Germain prime.

Together with 344383423, it forms a pair of twin primes.

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 (344383423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172191710 + 172191711.

It is an arithmetic number, because the mean of its divisors is an integer number (172191711).

Almost surely, 2^344383421 is an apocalyptic number.

It is an amenable number.

344383421 is a deficient number, since it is larger than the sum of its proper divisors (1).

344383421 is an equidigital number, since it uses as much as digits as its factorization.

344383421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 32.

The square root of 344383421 is about 18557.5704498191. The cubic root of 344383421 is about 700.9398402995.

The spelling of 344383421 in words is "three hundred forty-four million, three hundred eighty-three thousand, four hundred twenty-one".