689560814 has 16 divisors (see below), whose sum is σ = 1068120240. Its totient is φ = 333668160.

The previous prime is 689560759. The next prime is 689560819. The reversal of 689560814 is 418065986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689560819) 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 7 ways as a sum of consecutive naturals, for example, 27407 + ... + 46154.

It is an arithmetic number, because the mean of its divisors is an integer number (66757515).

Almost surely, 2^689560814 is an apocalyptic number.

689560814 is a deficient number, since it is larger than the sum of its proper divisors (378559426).

689560814 is a wasteful number, since it uses less digits than its factorization.

689560814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73715.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 689560814 is about 26259.4899798149. The cubic root of 689560814 is about 883.4680697602.

The spelling of 689560814 in words is "six hundred eighty-nine million, five hundred sixty thousand, eight hundred fourteen".