344621 has 2 divisors, whose sum is σ = 344622. Its totient is φ = 344620.

The previous prime is 344611. The next prime is 344629. The reversal of 344621 is 126443.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343396 + 1225 = 586^2 + 35^2 .

It is an emirp because it is prime and its reverse (126443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344621 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 344593 and 344602.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 344621.

It is not a weakly prime, because it can be changed into another prime (344629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172310 + 172311.

It is an arithmetic number, because the mean of its divisors is an integer number (172311).

2³⁴⁴⁶²¹ is an apocalyptic number.

It is an amenable number.

344621 is a deficient number, since it is larger than the sum of its proper divisors (1).

344621 is an equidigital number, since it uses as much as digits as its factorization.

344621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 20.

The square root of 344621 is about 587.0442913444. The cubic root of 344621 is about 70.1100988501.

The spelling of 344621 in words is "three hundred forty-four thousand, six hundred twenty-one".