689333678 has 16 divisors (see below), whose sum is σ = 1152002304. Its totient is φ = 306666360.

The previous prime is 689333669. The next prime is 689333693. The reversal of 689333678 is 876333986.

689333678 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 7 ways as a sum of consecutive naturals, for example, 332300 + ... + 334367.

It is an arithmetic number, because the mean of its divisors is an integer number (72000144).

Almost surely, 2^689333678 is an apocalyptic number.

689333678 is a deficient number, since it is larger than the sum of its proper divisors (462668626).

689333678 is a wasteful number, since it uses less digits than its factorization.

689333678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666727.

The product of its digits is 3919104, while the sum is 53.

The square root of 689333678 is about 26255.1647871424. The cubic root of 689333678 is about 883.3710565908.

The spelling of 689333678 in words is "six hundred eighty-nine million, three hundred thirty-three thousand, six hundred seventy-eight".