684104405 has 8 divisors (see below), whose sum is σ = 864132000. Its totient is φ = 518479056.

The previous prime is 684104357. The next prime is 684104413. The reversal of 684104405 is 504401486.

684104405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 684104405 - 2⁸ = 684104149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3600455 + ... + 3600644.

It is an arithmetic number, because the mean of its divisors is an integer number (108016500).

Almost surely, 2^684104405 is an apocalyptic number.

It is an amenable number.

684104405 is a deficient number, since it is larger than the sum of its proper divisors (180027595).

684104405 is a wasteful number, since it uses less digits than its factorization.

684104405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7201123.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 684104405 is about 26155.3895975571. The cubic root of 684104405 is about 881.1316385810.

The spelling of 684104405 in words is "six hundred eighty-four million, one hundred four thousand, four hundred five".