683512073 has 4 divisors (see below), whose sum is σ = 683856000. Its totient is φ = 683168148.

The previous prime is 683512069. The next prime is 683512097. The reversal of 683512073 is 370215386.

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, and also an emirpimes, since its reverse is a distinct semiprime: 370215386 = 2 ⋅185107693.

It is a cyclic number.

It is not a de Polignac number, because 683512073 - 2² = 683512069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (683512373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168965 + ... + 172962.

It is an arithmetic number, because the mean of its divisors is an integer number (170964000).

Almost surely, 2^683512073 is an apocalyptic number.

It is an amenable number.

683512073 is a deficient number, since it is larger than the sum of its proper divisors (343927).

683512073 is a wasteful number, since it uses less digits than its factorization.

683512073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343926.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 683512073 is about 26144.0638195365. The cubic root of 683512073 is about 880.8772557850.

The spelling of 683512073 in words is "six hundred eighty-three million, five hundred twelve thousand, seventy-three".