689132924 has 12 divisors (see below), whose sum is σ = 1228737384. Its totient is φ = 338065104.

The previous prime is 689132903. The next prime is 689132947. The reversal of 689132924 is 429231986.

689132924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 1625102 + ... + 1625525.

It is an arithmetic number, because the mean of its divisors is an integer number (102394782).

Almost surely, 2^689132924 is an apocalyptic number.

It is an amenable number.

689132924 is a deficient number, since it is larger than the sum of its proper divisors (539604460).

689132924 is a wasteful number, since it uses less digits than its factorization.

689132924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250684 (or 3250682 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 689132924 is about 26251.3413752517. The cubic root of 689132924 is about 883.2852938235.

The spelling of 689132924 in words is "six hundred eighty-nine million, one hundred thirty-two thousand, nine hundred twenty-four".