344705377 has 2 divisors, whose sum is σ = 344705378. Its totient is φ = 344705376.

The previous prime is 344705369. The next prime is 344705381. The reversal of 344705377 is 773507443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342398016 + 2307361 = 18504^2 + 1519^2 .

It is a cyclic number.

It is not a de Polignac number, because 344705377 - 2³ = 344705369 is a prime.

It is not a weakly prime, because it can be changed into another prime (344705177) 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, 172352688 + 172352689.

It is an arithmetic number, because the mean of its divisors is an integer number (172352689).

Almost surely, 2^344705377 is an apocalyptic number.

It is an amenable number.

344705377 is a deficient number, since it is larger than the sum of its proper divisors (1).

344705377 is an equidigital number, since it uses as much as digits as its factorization.

344705377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 246960, while the sum is 40.

The square root of 344705377 is about 18566.2429425019. The cubic root of 344705377 is about 701.1582030166.

The spelling of 344705377 in words is "three hundred forty-four million, seven hundred five thousand, three hundred seventy-seven".