344821361 has 2 divisors, whose sum is σ = 344821362. Its totient is φ = 344821360.

The previous prime is 344821297. The next prime is 344821427. The reversal of 344821361 is 163128443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173080336 + 171741025 = 13156^2 + 13105^2 .

It is a cyclic number.

It is not a de Polignac number, because 344821361 - 2⁶ = 344821297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344821661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172410680 + 172410681.

It is an arithmetic number, because the mean of its divisors is an integer number (172410681).

Almost surely, 2^344821361 is an apocalyptic number.

It is an amenable number.

344821361 is a deficient number, since it is larger than the sum of its proper divisors (1).

344821361 is an equidigital number, since it uses as much as digits as its factorization.

344821361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 32.

The square root of 344821361 is about 18569.3661981232. The cubic root of 344821361 is about 701.2368344307.

The spelling of 344821361 in words is "three hundred forty-four million, eight hundred twenty-one thousand, three hundred sixty-one".