687054163 has 8 divisors (see below), whose sum is σ = 706736016. Its totient is φ = 667644000.

The previous prime is 687054161. The next prime is 687054227. The reversal of 687054163 is 361450786.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 687054163 - 2¹ = 687054161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (687054161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62788 + ... + 72913.

It is an arithmetic number, because the mean of its divisors is an integer number (88342002).

Almost surely, 2^687054163 is an apocalyptic number.

687054163 is a deficient number, since it is larger than the sum of its proper divisors (19681853).

687054163 is a wasteful number, since it uses less digits than its factorization.

687054163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135845.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 687054163 is about 26211.7180474688. The cubic root of 687054163 is about 882.3962595569.

The spelling of 687054163 in words is "six hundred eighty-seven million, fifty-four thousand, one hundred sixty-three".