689494223 has 8 divisors (see below), whose sum is σ = 772505040. Its totient is φ = 609871680.

The previous prime is 689494199. The next prime is 689494229. The reversal of 689494223 is 322494986.

689494223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 689494223 - 2⁶ = 689494159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689494229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846638 + ... + 847451.

It is an arithmetic number, because the mean of its divisors is an integer number (96563130).

Almost surely, 2^689494223 is an apocalyptic number.

689494223 is a deficient number, since it is larger than the sum of its proper divisors (83010817).

689494223 is a wasteful number, since it uses less digits than its factorization.

689494223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694137.

The product of its digits is 746496, while the sum is 47.

The square root of 689494223 is about 26258.2220075922. Note that the first 3 decimals coincide. The cubic root of 689494223 is about 883.4396299597.

The spelling of 689494223 in words is "six hundred eighty-nine million, four hundred ninety-four thousand, two hundred twenty-three".