689232885 has 32 divisors (see below), whose sum is σ = 1266347520. Its totient is φ = 316584000.

The previous prime is 689232883. The next prime is 689232911. The reversal of 689232885 is 588232986.

It is not a de Polignac number, because 689232885 - 2¹ = 689232883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689232883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106791 + ... + 113060.

It is an arithmetic number, because the mean of its divisors is an integer number (39573360).

Almost surely, 2^689232885 is an apocalyptic number.

It is an amenable number.

689232885 is a deficient number, since it is larger than the sum of its proper divisors (577114635).

689232885 is a wasteful number, since it uses less digits than its factorization.

689232885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219889.

The product of its digits is 1658880, while the sum is 51.

The square root of 689232885 is about 26253.2452279713. The cubic root of 689232885 is about 883.3279995722.

The spelling of 689232885 in words is "six hundred eighty-nine million, two hundred thirty-two thousand, eight hundred eighty-five".