344521 has 4 divisors (see below), whose sum is σ = 346752. Its totient is φ = 342292.

The previous prime is 344497. The next prime is 344543. The reversal of 344521 is 125443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 344521 - 2¹⁷ = 213449 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 4² + 5⁷ + 4⁹ + 2¹¹ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865 + ... + 1198.

It is an arithmetic number, because the mean of its divisors is an integer number (86688).

2³⁴⁴⁵²¹ is an apocalyptic number.

It is an amenable number.

344521 is a deficient number, since it is larger than the sum of its proper divisors (2231).

344521 is a wasteful number, since it uses less digits than its factorization.

344521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230.

The product of its digits is 480, while the sum is 19.

The square root of 344521 is about 586.9591127157. The cubic root of 344521 is about 70.1033168218.

Adding to 344521 its reverse (125443), we get a palindrome (469964).

It can be divided in two parts, 34452 and 1, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 344521 in words is "three hundred forty-four thousand, five hundred twenty-one".