689446 has 8 divisors (see below), whose sum is σ = 1069920. Its totient is φ = 332808.

The previous prime is 689441. The next prime is 689459. The reversal of 689446 is 644986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689441) 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, 5886 + ... + 6001.

It is an arithmetic number, because the mean of its divisors is an integer number (133740).

2⁶⁸⁹⁴⁴⁶ is an apocalyptic number.

689446 is a deficient number, since it is larger than the sum of its proper divisors (380474).

689446 is a wasteful number, since it uses less digits than its factorization.

689446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11918.

The product of its digits is 41472, while the sum is 37.

The square root of 689446 is about 830.3288505165. The cubic root of 689446 is about 88.3419033653.

The spelling of 689446 in words is "six hundred eighty-nine thousand, four hundred forty-six".