706320073 has 2 divisors, whose sum is σ = 706320074. Its totient is φ = 706320072.

The previous prime is 706320061. The next prime is 706320103. The reversal of 706320073 is 370023607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354832569 + 351487504 = 18837^2 + 18748^2 .

It is an emirp because it is prime and its reverse (370023607) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-706320073 is a prime.

It is not a weakly prime, because it can be changed into another prime (706320673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353160036 + 353160037.

It is an arithmetic number, because the mean of its divisors is an integer number (353160037).

Almost surely, 2^706320073 is an apocalyptic number.

It is an amenable number.

706320073 is a deficient number, since it is larger than the sum of its proper divisors (1).

706320073 is an equidigital number, since it uses as much as digits as its factorization.

706320073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 706320073 is about 26576.6828818045. The cubic root of 706320073 is about 890.5681987996.

The spelling of 706320073 in words is "seven hundred six million, three hundred twenty thousand, seventy-three".