687297606 has 8 divisors (see below), whose sum is σ = 1374595224. Its totient is φ = 229099200.

The previous prime is 687297601. The next prime is 687297613. The reversal of 687297606 is 606792786.

687297606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

687297606 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687297601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57274795 + ... + 57274806.

It is an arithmetic number, because the mean of its divisors is an integer number (171824403).

Almost surely, 2^687297606 is an apocalyptic number.

687297606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

687297606 is a wasteful number, since it uses less digits than its factorization.

687297606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114549606.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 687297606 is about 26216.3614180153. The cubic root of 687297606 is about 882.5004666862.

The spelling of 687297606 in words is "six hundred eighty-seven million, two hundred ninety-seven thousand, six hundred six".