683539561 has 8 divisors (see below), whose sum is σ = 694356704. Its totient is φ = 672740640.

The previous prime is 683539547. The next prime is 683539579. The reversal of 683539561 is 165935386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 683539561 - 2⁹ = 683539049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683539511) 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, 84646 + ... + 92368.

It is an arithmetic number, because the mean of its divisors is an integer number (86794588).

Almost surely, 2^683539561 is an apocalyptic number.

It is an amenable number.

683539561 is a deficient number, since it is larger than the sum of its proper divisors (10817143).

683539561 is a wasteful number, since it uses less digits than its factorization.

683539561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111.

The product of its digits is 583200, while the sum is 46.

The square root of 683539561 is about 26144.5895167624. The cubic root of 683539561 is about 880.8890640277.

The spelling of 683539561 in words is "six hundred eighty-three million, five hundred thirty-nine thousand, five hundred sixty-one".