689054068 has 12 divisors (see below), whose sum is σ = 1208711812. Its totient is φ = 343707840.

The previous prime is 689054053. The next prime is 689054101. The reversal of 689054068 is 860450986.

It can be written as a sum of positive squares in 2 ways, for example, as 104284944 + 584769124 = 10212^2 + 24182^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202905 + ... + 206272.

Almost surely, 2^689054068 is an apocalyptic number.

It is an amenable number.

689054068 is a deficient number, since it is larger than the sum of its proper divisors (519657744).

689054068 is a wasteful number, since it uses less digits than its factorization.

689054068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409602 (or 409600 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 689054068 is about 26249.8393899848. The cubic root of 689054068 is about 883.2516017255.

The spelling of 689054068 in words is "six hundred eighty-nine million, fifty-four thousand, sixty-eight".