723968737 has 2 divisors, whose sum is σ = 723968738. Its totient is φ = 723968736.

The previous prime is 723968689. The next prime is 723968767. The reversal of 723968737 is 737869327.

723968737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 716151121 + 7817616 = 26761^2 + 2796^2 .

It is a cyclic number.

It is not a de Polignac number, because 723968737 - 2²⁷ = 589751009 is a prime.

It is not a weakly prime, because it can be changed into another prime (723968767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361984368 + 361984369.

It is an arithmetic number, because the mean of its divisors is an integer number (361984369).

Almost surely, 2^723968737 is an apocalyptic number.

It is an amenable number.

723968737 is a deficient number, since it is larger than the sum of its proper divisors (1).

723968737 is an equidigital number, since it uses as much as digits as its factorization.

723968737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168, while the sum is 52.

The square root of 723968737 is about 26906.6671477535. The cubic root of 723968737 is about 897.9247398497.

The spelling of 723968737 in words is "seven hundred twenty-three million, nine hundred sixty-eight thousand, seven hundred thirty-seven".