683682109 has 4 divisors (see below), whose sum is σ = 745835040. Its totient is φ = 621529180.

The previous prime is 683682089. The next prime is 683682133. The reversal of 683682109 is 901286386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 683682109 - 2¹³ = 683673917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683682709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31076449 + ... + 31076470.

It is an arithmetic number, because the mean of its divisors is an integer number (186458760).

Almost surely, 2^683682109 is an apocalyptic number.

It is an amenable number.

683682109 is a deficient number, since it is larger than the sum of its proper divisors (62152931).

683682109 is a wasteful number, since it uses less digits than its factorization.

683682109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62152930.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 683682109 is about 26147.3155218657. The cubic root of 683682109 is about 880.9502944493.

The spelling of 683682109 in words is "six hundred eighty-three million, six hundred eighty-two thousand, one hundred nine".