689710234 has 8 divisors (see below), whose sum is σ = 1035612288. Its totient is φ = 344506140.

The previous prime is 689710193. The next prime is 689710243. The reversal of 689710234 is 432017986.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172012 + ... + 175975.

It is an arithmetic number, because the mean of its divisors is an integer number (129451536).

Almost surely, 2^689710234 is an apocalyptic number.

689710234 is a deficient number, since it is larger than the sum of its proper divisors (345902054).

689710234 is a wasteful number, since it uses less digits than its factorization.

689710234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348980.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 689710234 is about 26262.3348923891. The cubic root of 689710234 is about 883.5318776520.

The spelling of 689710234 in words is "six hundred eighty-nine million, seven hundred ten thousand, two hundred thirty-four".