689487234 has 8 divisors (see below), whose sum is σ = 1378974480. Its totient is φ = 229829076.

The previous prime is 689487223. The next prime is 689487247. The reversal of 689487234 is 432784986.

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

689487234 is an admirable number.

It is a super-3 number, since 3×689487234³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57457264 + ... + 57457275.

It is an arithmetic number, because the mean of its divisors is an integer number (172371810).

Almost surely, 2^689487234 is an apocalyptic number.

689487234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

689487234 is a wasteful number, since it uses less digits than its factorization.

689487234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114914544.

The product of its digits is 2322432, while the sum is 51.

The square root of 689487234 is about 26258.0889251293. The cubic root of 689487234 is about 883.4366449792.

The spelling of 689487234 in words is "six hundred eighty-nine million, four hundred eighty-seven thousand, two hundred thirty-four".