683345618 has 16 divisors (see below), whose sum is σ = 1065015000. Its totient is φ = 328444032.

The previous prime is 683345599. The next prime is 683345623. The reversal of 683345618 is 816543386.

It can be written as a sum of positive squares in 4 ways, for example, as 651117289 + 32228329 = 25517^2 + 5677^2 .

It is a super-2 number, since 2×683345618² = 933922467279603848, which contains 22 as substring.

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, 12443 + ... + 39006.

Almost surely, 2^683345618 is an apocalyptic number.

683345618 is a deficient number, since it is larger than the sum of its proper divisors (381669382).

683345618 is a wasteful number, since it uses less digits than its factorization.

683345618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51709.

The product of its digits is 414720, while the sum is 44.

The square root of 683345618 is about 26140.8802070627. The cubic root of 683345618 is about 880.8057435988.

The spelling of 683345618 in words is "six hundred eighty-three million, three hundred forty-five thousand, six hundred eighteen".