723564899 has 2 divisors, whose sum is σ = 723564900. Its totient is φ = 723564898.

The previous prime is 723564887. The next prime is 723564911. The reversal of 723564899 is 998465327.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (723564887) and next prime (723564911).

It is an emirp because it is prime and its reverse (998465327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 723564899 - 2⁴ = 723564883 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 723564899.

It is not a weakly prime, because it can be changed into another prime (723564839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361782449 + 361782450.

It is an arithmetic number, because the mean of its divisors is an integer number (361782450).

Almost surely, 2^723564899 is an apocalyptic number.

723564899 is a deficient number, since it is larger than the sum of its proper divisors (1).

723564899 is an equidigital number, since it uses as much as digits as its factorization.

723564899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 53.

The square root of 723564899 is about 26899.1616783869. The cubic root of 723564899 is about 897.7577512505.

The spelling of 723564899 in words is "seven hundred twenty-three million, five hundred sixty-four thousand, eight hundred ninety-nine".