341721 has 12 divisors (see below), whose sum is σ = 505648. Its totient is φ = 222264.

The previous prime is 341701. The next prime is 341729. The reversal of 341721 is 127143.

341721 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 341721 - 2¹¹ = 339673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 341694 and 341703.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 341721.

It is not an unprimeable number, because it can be changed into a prime (341729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55 + ... + 828.

2³⁴¹⁷²¹ is an apocalyptic number.

It is an amenable number.

341721 is a deficient number, since it is larger than the sum of its proper divisors (163927).

341721 is a wasteful number, since it uses less digits than its factorization.

341721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 929 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 341721 is about 584.5690720522. The cubic root of 341721 is about 69.9128848272.

Adding to 341721 its reverse (127143), we get a palindrome (468864).

The spelling of 341721 in words is "three hundred forty-one thousand, seven hundred twenty-one", and thus it is an iban number.