689344 has 14 divisors (see below), whose sum is σ = 1368044. Its totient is φ = 344640.

The previous prime is 689341. The next prime is 689357. The reversal of 689344 is 443986.

It is not an unprimeable number, because it can be changed into a prime (689341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322 + ... + 5449.

2⁶⁸⁹³⁴⁴ is an apocalyptic number.

689344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

689344 is a deficient number, since it is larger than the sum of its proper divisors (678700).

689344 is a wasteful number, since it uses less digits than its factorization.

689344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10783 (or 10773 counting only the distinct ones).

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

The square root of 689344 is about 830.2674267969. The cubic root of 689344 is about 88.3375465733.

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

The spelling of 689344 in words is "six hundred eighty-nine thousand, three hundred forty-four".