344689 has 4 divisors (see below), whose sum is σ = 355840. Its totient is φ = 333540.

The previous prime is 344683. The next prime is 344693. The reversal of 344689 is 986443.

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, and also an emirpimes, since its reverse is a distinct semiprime: 986443 = 199 ⋅4957.

It is a cyclic number.

It is not a de Polignac number, because 344689 - 2³ = 344681 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (344681) 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, 5529 + ... + 5590.

It is an arithmetic number, because the mean of its divisors is an integer number (88960).

2³⁴⁴⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

344689 is a deficient number, since it is larger than the sum of its proper divisors (11151).

344689 is a wasteful number, since it uses less digits than its factorization.

344689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11150.

The product of its digits is 20736, while the sum is 34.

The square root of 344689 is about 587.1022057530. The cubic root of 344689 is about 70.1147098800.

It can be divided in two parts, 344 and 689, that multiplied together give a triangular number (237016 = T₆₈₈).

The spelling of 344689 in words is "three hundred forty-four thousand, six hundred eighty-nine".