723968633 has 2 divisors, whose sum is σ = 723968634. Its totient is φ = 723968632.

The previous prime is 723968621. The next prime is 723968653. The reversal of 723968633 is 336869327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 618865129 + 105103504 = 24877^2 + 10252^2 .

It is an emirp because it is prime and its reverse (336869327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 723968633 - 2⁴ = 723968617 is a prime.

It is not a weakly prime, because it can be changed into another prime (723968653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361984316 + 361984317.

It is an arithmetic number, because the mean of its divisors is an integer number (361984317).

Almost surely, 2^723968633 is an apocalyptic number.

It is an amenable number.

723968633 is a deficient number, since it is larger than the sum of its proper divisors (1).

723968633 is an equidigital number, since it uses as much as digits as its factorization.

723968633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 47.

The square root of 723968633 is about 26906.6652151470. The cubic root of 723968633 is about 897.9246968533.

The spelling of 723968633 in words is "seven hundred twenty-three million, nine hundred sixty-eight thousand, six hundred thirty-three".