840760684 has 12 divisors (see below), whose sum is σ = 1471760584. Its totient is φ = 420257664.

The previous prime is 840760681. The next prime is 840760691. The reversal of 840760684 is 486067048.

It is a self number, because there is not a number n which added to its sum of digits gives 840760684.

It is not an unprimeable number, because it can be changed into a prime (840760681) 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 3 ways as a sum of consecutive naturals, for example, 14277 + ... + 43420.

Almost surely, 2^840760684 is an apocalyptic number.

It is an amenable number.

840760684 is a deficient number, since it is larger than the sum of its proper divisors (630999900).

840760684 is a wasteful number, since it uses less digits than its factorization.

840760684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61344 (or 61342 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 840760684 is about 28995.8735684925. The cubic root of 840760684 is about 943.8235255553.

The spelling of 840760684 in words is "eight hundred forty million, seven hundred sixty thousand, six hundred eighty-four".