689623006 has 16 divisors (see below), whose sum is σ = 1040999040. Its totient is φ = 342630400.

The previous prime is 689623001. The next prime is 689623021. The reversal of 689623006 is 600326986.

It is a self number, because there is not a number n which added to its sum of digits gives 689623006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689623001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244806 + ... + 247606.

It is an arithmetic number, because the mean of its divisors is an integer number (65062440).

Almost surely, 2^689623006 is an apocalyptic number.

689623006 is a deficient number, since it is larger than the sum of its proper divisors (351376034).

689623006 is a wasteful number, since it uses less digits than its factorization.

689623006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 689623006 is about 26260.6741345305. The cubic root of 689623006 is about 883.4946291747.

The spelling of 689623006 in words is "six hundred eighty-nine million, six hundred twenty-three thousand, six".