687601107 has 12 divisors (see below), whose sum is σ = 1027450320. Its totient is φ = 442593648.

The previous prime is 687601097. The next prime is 687601141. The reversal of 687601107 is 701106786.

It is a happy number.

It is not a de Polignac number, because 687601107 - 2¹⁶ = 687535571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (687600107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1316983 + ... + 1317504.

It is an arithmetic number, because the mean of its divisors is an integer number (85620860).

Almost surely, 2^687601107 is an apocalyptic number.

687601107 is a deficient number, since it is larger than the sum of its proper divisors (339849213).

687601107 is a wasteful number, since it uses less digits than its factorization.

687601107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634522 (or 2634519 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 687601107 is about 26222.1491682127. The cubic root of 687601107 is about 882.6303475203.

The spelling of 687601107 in words is "six hundred eighty-seven million, six hundred one thousand, one hundred seven".