687614 has 8 divisors (see below), whose sum is σ = 1043280. Its totient is φ = 339856.

The previous prime is 687593. The next prime is 687623. The reversal of 687614 is 416786.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 687614.

It is an unprimeable number.

687614 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754 + ... + 2109.

It is an arithmetic number, because the mean of its divisors is an integer number (130410).

2⁶⁸⁷⁶¹⁴ is an apocalyptic number.

687614 is a deficient number, since it is larger than the sum of its proper divisors (355666).

687614 is a wasteful number, since it uses less digits than its factorization.

687614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954.

The product of its digits is 8064, while the sum is 32.

The square root of 687614 is about 829.2249393259. The cubic root of 687614 is about 88.2635864131.

The spelling of 687614 in words is "six hundred eighty-seven thousand, six hundred fourteen".