723229697 has 2 divisors, whose sum is σ = 723229698. Its totient is φ = 723229696.

The previous prime is 723229693. The next prime is 723229723. The reversal of 723229697 is 796922327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 593360881 + 129868816 = 24359^2 + 11396^2 .

It is a cyclic number.

It is not a de Polignac number, because 723229697 - 2² = 723229693 is a prime.

It is a super-2 number, since 2×723229697² = 1046122389245423618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (723229693) 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, 361614848 + 361614849.

It is an arithmetic number, because the mean of its divisors is an integer number (361614849).

Almost surely, 2^723229697 is an apocalyptic number.

It is an amenable number.

723229697 is a deficient number, since it is larger than the sum of its proper divisors (1).

723229697 is an equidigital number, since it uses as much as digits as its factorization.

723229697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 47.

The square root of 723229697 is about 26892.9302419800. The cubic root of 723229697 is about 897.6190967100.

The spelling of 723229697 in words is "seven hundred twenty-three million, two hundred twenty-nine thousand, six hundred ninety-seven".