683630818 has 16 divisors (see below), whose sum is σ = 1105296696. Its totient is φ = 315244800.

The previous prime is 683630791. The next prime is 683630819. The reversal of 683630818 is 818036386.

683630818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 313183809 + 370447009 = 17697^2 + 19247^2 .

It is not an unprimeable number, because it can be changed into a prime (683630819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20280 + ... + 42172.

Almost surely, 2^683630818 is an apocalyptic number.

683630818 is a deficient number, since it is larger than the sum of its proper divisors (421665878).

683630818 is a wasteful number, since it uses less digits than its factorization.

683630818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23109.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 683630818 is about 26146.3346953258. The cubic root of 683630818 is about 880.9282637663.

The spelling of 683630818 in words is "six hundred eighty-three million, six hundred thirty thousand, eight hundred eighteen".