687296 has 14 divisors (see below), whose sum is σ = 1363980. Its totient is φ = 343616.

The previous prime is 687289. The next prime is 687299. The reversal of 687296 is 692786.

It is not an unprimeable number, because it can be changed into a prime (687299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5306 + ... + 5433.

2⁶⁸⁷²⁹⁶ is an apocalyptic number.

It is an amenable number.

687296 is a deficient number, since it is larger than the sum of its proper divisors (676684).

687296 is a wasteful number, since it uses less digits than its factorization.

687296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10751 (or 10741 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 687296 is about 829.0331718333. The cubic root of 687296 is about 88.2499779310.

It can be divided in two parts, 6 and 87296, that multiplied together give a triangular number (523776 = T₁₀₂₃).

The spelling of 687296 in words is "six hundred eighty-seven thousand, two hundred ninety-six".