684126982 has 48 divisors (see below), whose sum is σ = 1295594496. Its totient is φ = 265201200.

The previous prime is 684126979. The next prime is 684126983. The reversal of 684126982 is 289621486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684126983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376857 + ... + 378667.

It is an arithmetic number, because the mean of its divisors is an integer number (26991552).

Almost surely, 2^684126982 is an apocalyptic number.

684126982 is a deficient number, since it is larger than the sum of its proper divisors (611467514).

684126982 is a wasteful number, since it uses less digits than its factorization.

684126982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065 (or 2054 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 684126982 is about 26155.8211876439. The cubic root of 684126982 is about 881.1413315898.

The spelling of 684126982 in words is "six hundred eighty-four million, one hundred twenty-six thousand, nine hundred eighty-two".