687360163 has 4 divisors (see below), whose sum is σ = 785554480. Its totient is φ = 589165848.

The previous prime is 687360161. The next prime is 687360173. The reversal of 687360163 is 361063786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 687360163 - 2¹ = 687360161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (687360161) 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 3 ways as a sum of consecutive naturals, for example, 49097148 + ... + 49097161.

It is an arithmetic number, because the mean of its divisors is an integer number (196388620).

Almost surely, 2^687360163 is an apocalyptic number.

687360163 is a deficient number, since it is larger than the sum of its proper divisors (98194317).

687360163 is an equidigital number, since it uses as much as digits as its factorization.

687360163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98194316.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 687360163 is about 26217.5544816827. The cubic root of 687360163 is about 882.5272405837.

The spelling of 687360163 in words is "six hundred eighty-seven million, three hundred sixty thousand, one hundred sixty-three".