723680273 has 2 divisors, whose sum is σ = 723680274. Its totient is φ = 723680272.

The previous prime is 723680267. The next prime is 723680329. The reversal of 723680273 is 372086327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 580231744 + 143448529 = 24088^2 + 11977^2 .

It is a cyclic number.

It is not a de Polignac number, because 723680273 - 2¹⁰ = 723679249 is a prime.

It is not a weakly prime, because it can be changed into another prime (723680233) 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 as a sum of consecutive naturals, namely, 361840136 + 361840137.

It is an arithmetic number, because the mean of its divisors is an integer number (361840137).

Almost surely, 2^723680273 is an apocalyptic number.

It is an amenable number.

723680273 is a deficient number, since it is larger than the sum of its proper divisors (1).

723680273 is an equidigital number, since it uses as much as digits as its factorization.

723680273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 723680273 is about 26901.3061578801. The cubic root of 723680273 is about 897.8054651912.

The spelling of 723680273 in words is "seven hundred twenty-three million, six hundred eighty thousand, two hundred seventy-three".