683704505 has 16 divisors (see below), whose sum is σ = 911922624. Its totient is φ = 487855680.

The previous prime is 683704501. The next prime is 683704517. The reversal of 683704505 is 505407386.

It is not a de Polignac number, because 683704505 - 2² = 683704501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683704501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114359 + ... + 120188.

It is an arithmetic number, because the mean of its divisors is an integer number (56995164).

Almost surely, 2^683704505 is an apocalyptic number.

It is an amenable number.

683704505 is a deficient number, since it is larger than the sum of its proper divisors (228218119).

683704505 is a wasteful number, since it uses less digits than its factorization.

683704505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234616.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 683704505 is about 26147.7437841203. The cubic root of 683704505 is about 880.9599137091.

The spelling of 683704505 in words is "six hundred eighty-three million, seven hundred four thousand, five hundred five".