723705481 has 2 divisors, whose sum is σ = 723705482. Its totient is φ = 723705480.

The previous prime is 723705467. The next prime is 723705559. The reversal of 723705481 is 184507327.

723705481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 723610000 + 95481 = 26900^2 + 309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723705481 is a prime.

It is a super-2 number, since 2×723705481² = 1047499246458882722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 723705481.

It is not a weakly prime, because it can be changed into another prime (723705581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361852740 + 361852741.

It is an arithmetic number, because the mean of its divisors is an integer number (361852741).

Almost surely, 2^723705481 is an apocalyptic number.

It is an amenable number.

723705481 is a deficient number, since it is larger than the sum of its proper divisors (1).

723705481 is an equidigital number, since it uses as much as digits as its factorization.

723705481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 723705481 is about 26901.7746812362. The cubic root of 723705481 is about 897.8158895081.

The spelling of 723705481 in words is "seven hundred twenty-three million, seven hundred five thousand, four hundred eighty-one".