687873315 has 8 divisors (see below), whose sum is σ = 1100597328. Its totient is φ = 366865760.

The previous prime is 687873299. The next prime is 687873317. The reversal of 687873315 is 513378786.

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

It is not a de Polignac number, because 687873315 - 2⁴ = 687873299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (687873317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22929096 + ... + 22929125.

It is an arithmetic number, because the mean of its divisors is an integer number (137574666).

Almost surely, 2^687873315 is an apocalyptic number.

687873315 is a deficient number, since it is larger than the sum of its proper divisors (412724013).

687873315 is a wasteful number, since it uses less digits than its factorization.

687873315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45858229.

The product of its digits is 846720, while the sum is 48.

The square root of 687873315 is about 26227.3390758575. The cubic root of 687873315 is about 882.7468042574.

The spelling of 687873315 in words is "six hundred eighty-seven million, eight hundred seventy-three thousand, three hundred fifteen".