683139073 has 2 divisors, whose sum is σ = 683139074. Its totient is φ = 683139072.

The previous prime is 683139071. The next prime is 683139097. The reversal of 683139073 is 370931386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440496144 + 242642929 = 20988^2 + 15577^2 .

It is a cyclic number.

It is not a de Polignac number, because 683139073 - 2¹ = 683139071 is a prime.

Together with 683139071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (683139071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341569536 + 341569537.

It is an arithmetic number, because the mean of its divisors is an integer number (341569537).

Almost surely, 2^683139073 is an apocalyptic number.

It is an amenable number.

683139073 is a deficient number, since it is larger than the sum of its proper divisors (1).

683139073 is an equidigital number, since it uses as much as digits as its factorization.

683139073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 683139073 is about 26136.9292955389. The cubic root of 683139073 is about 880.7169918506.

The spelling of 683139073 in words is "six hundred eighty-three million, one hundred thirty-nine thousand, seventy-three".