683780073 has 4 divisors (see below), whose sum is σ = 911706768. Its totient is φ = 455853380.

The previous prime is 683780047. The next prime is 683780081. The reversal of 683780073 is 370087386.

It is a happy number.

683780073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 683780073 - 2²¹ = 681682921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (683780033) 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, 113963343 + ... + 113963348.

It is an arithmetic number, because the mean of its divisors is an integer number (227926692).

Almost surely, 2^683780073 is an apocalyptic number.

It is an amenable number.

683780073 is a deficient number, since it is larger than the sum of its proper divisors (227926695).

683780073 is a wasteful number, since it uses less digits than its factorization.

683780073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227926694.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 683780073 is about 26149.1887637074. The cubic root of 683780073 is about 880.9923692147.

The spelling of 683780073 in words is "six hundred eighty-three million, seven hundred eighty thousand, seventy-three".