689538606 has 16 divisors (see below), whose sum is σ = 1379432064. Its totient is φ = 229787064.

The previous prime is 689538601. The next prime is 689538653. The reversal of 689538606 is 606835986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689538601) 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 7 ways as a sum of consecutive naturals, for example, 15135 + ... + 40101.

It is an arithmetic number, because the mean of its divisors is an integer number (86214504).

Almost surely, 2^689538606 is an apocalyptic number.

689538606 is an abundant number, since it is smaller than the sum of its proper divisors (689893458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689538606 is a wasteful number, since it uses less digits than its factorization.

689538606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29575.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The square root of 689538606 is about 26259.0671197588. The cubic root of 689538606 is about 883.4585853323.

The spelling of 689538606 in words is "six hundred eighty-nine million, five hundred thirty-eight thousand, six hundred six".