687856314 has 8 divisors (see below), whose sum is σ = 1375712640. Its totient is φ = 229285436.

The previous prime is 687856277. The next prime is 687856319. The reversal of 687856314 is 413658786.

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

687856314 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (687856319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57321354 + ... + 57321365.

It is an arithmetic number, because the mean of its divisors is an integer number (171964080).

Almost surely, 2^687856314 is an apocalyptic number.

687856314 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687856314 is a wasteful number, since it uses less digits than its factorization.

687856314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114642724.

The product of its digits is 967680, while the sum is 48.

The square root of 687856314 is about 26227.0149654893. The cubic root of 687856314 is about 882.7395317448.

The spelling of 687856314 in words is "six hundred eighty-seven million, eight hundred fifty-six thousand, three hundred fourteen".