689485588 has 18 divisors (see below), whose sum is σ = 1326263498. Its totient is φ = 313402320.

The previous prime is 689485583. The next prime is 689485633. The reversal of 689485588 is 885584986.

It can be written as a sum of positive squares in only one way, i.e., 451647504 + 237838084 = 21252^2 + 15422^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689485583) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 711795 + ... + 712762.

Almost surely, 2^689485588 is an apocalyptic number.

It is an amenable number.

689485588 is a deficient number, since it is larger than the sum of its proper divisors (636777910).

689485588 is a wasteful number, since it uses less digits than its factorization.

689485588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424583 (or 1424570 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 61.

The square root of 689485588 is about 26258.0575823879. The cubic root of 689485588 is about 883.4359419747.

The spelling of 689485588 in words is "six hundred eighty-nine million, four hundred eighty-five thousand, five hundred eighty-eight".