683109653 has 4 divisors (see below), whose sum is σ = 698995968. Its totient is φ = 667223340.

The previous prime is 683109643. The next prime is 683109701. The reversal of 683109653 is 356901386.

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 a de Polignac number, because none of the positive numbers 2^k-683109653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 683109653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683109613) 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, 7943093 + ... + 7943178.

It is an arithmetic number, because the mean of its divisors is an integer number (174748992).

Almost surely, 2^683109653 is an apocalyptic number.

It is an amenable number.

683109653 is a deficient number, since it is larger than the sum of its proper divisors (15886315).

683109653 is a wasteful number, since it uses less digits than its factorization.

683109653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15886314.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 683109653 is about 26136.3664842686. The cubic root of 683109653 is about 880.7043487120.

The spelling of 683109653 in words is "six hundred eighty-three million, one hundred nine thousand, six hundred fifty-three".