687601106 has 8 divisors (see below), whose sum is σ = 1031539404. Its totient is φ = 343754640.

The previous prime is 687601097. The next prime is 687601141. The reversal of 687601106 is 601106786.

It can be written as a sum of positive squares in 2 ways, for example, as 588499081 + 99102025 = 24259^2 + 9955^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596 + ... + 37088.

Almost surely, 2^687601106 is an apocalyptic number.

687601106 is a deficient number, since it is larger than the sum of its proper divisors (343938298).

687601106 is a wasteful number, since it uses less digits than its factorization.

687601106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45916.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 687601106 is about 26222.1491491449. The cubic root of 687601106 is about 882.6303470924.

The spelling of 687601106 in words is "six hundred eighty-seven million, six hundred one thousand, one hundred six".