687164315 has 8 divisors (see below), whose sum is σ = 825420480. Its totient is φ = 549182592.

The previous prime is 687164311. The next prime is 687164339. The reversal of 687164315 is 513461786.

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 687164315 - 2² = 687164311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (687164311) 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, 63059 + ... + 73148.

It is an arithmetic number, because the mean of its divisors is an integer number (103177560).

Almost surely, 2^687164315 is an apocalyptic number.

687164315 is a deficient number, since it is larger than the sum of its proper divisors (138256165).

687164315 is a wasteful number, since it uses less digits than its factorization.

687164315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137221.

The product of its digits is 120960, while the sum is 41.

The square root of 687164315 is about 26213.8191608930. The cubic root of 687164315 is about 882.4434137814.

The spelling of 687164315 in words is "six hundred eighty-seven million, one hundred sixty-four thousand, three hundred fifteen".