689454 has 12 divisors (see below), whose sum is σ = 1493856. Its totient is φ = 229812.

The previous prime is 689441. The next prime is 689459. The reversal of 689454 is 454986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19134 + ... + 19169.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2⁶⁸⁹⁴⁵⁴ is an apocalyptic number.

689454 is an abundant number, since it is smaller than the sum of its proper divisors (804402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689454 is a wasteful number, since it uses less digits than its factorization.

689454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38311 (or 38308 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 689454 is about 830.3336678709. Note that the first 3 decimals coincide. The cubic root of 689454 is about 88.3422450563.

The spelling of 689454 in words is "six hundred eighty-nine thousand, four hundred fifty-four".