344362661 has 2 divisors, whose sum is σ = 344362662. Its totient is φ = 344362660.

The previous prime is 344362657. The next prime is 344362673. The reversal of 344362661 is 166263443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342472036 + 1890625 = 18506^2 + 1375^2 .

It is an emirp because it is prime and its reverse (166263443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344362661 - 2² = 344362657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344362261) 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, 172181330 + 172181331.

It is an arithmetic number, because the mean of its divisors is an integer number (172181331).

Almost surely, 2^344362661 is an apocalyptic number.

It is an amenable number.

344362661 is a deficient number, since it is larger than the sum of its proper divisors (1).

344362661 is an equidigital number, since it uses as much as digits as its factorization.

344362661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 35.

The square root of 344362661 is about 18557.0111009289. The cubic root of 344362661 is about 700.9257554137.

The spelling of 344362661 in words is "three hundred forty-four million, three hundred sixty-two thousand, six hundred sixty-one".