684478606 has 16 divisors (see below), whose sum is σ = 1176112224. Its totient is φ = 292667904.

The previous prime is 684478589. The next prime is 684478661. The reversal of 684478606 is 606874486.

It is a self number, because there is not a number n which added to its sum of digits gives 684478606.

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, 50395 + ... + 62518.

It is an arithmetic number, because the mean of its divisors is an integer number (73507014).

Almost surely, 2^684478606 is an apocalyptic number.

684478606 is a deficient number, since it is larger than the sum of its proper divisors (491633618).

684478606 is a wasteful number, since it uses less digits than its factorization.

684478606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113355.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The square root of 684478606 is about 26162.5420401000. The cubic root of 684478606 is about 881.2922672013.

The spelling of 684478606 in words is "six hundred eighty-four million, four hundred seventy-eight thousand, six hundred six".