744623329 has 2 divisors, whose sum is σ = 744623330. Its totient is φ = 744623328.

The previous prime is 744623293. The next prime is 744623339. The reversal of 744623329 is 923326447.

Together with previous prime (744623293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 738752400 + 5870929 = 27180^2 + 2423^2 .

It is a cyclic number.

It is not a de Polignac number, because 744623329 - 2²¹ = 742526177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 744623291 and 744623300.

It is not a weakly prime, because it can be changed into another prime (744623339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372311664 + 372311665.

It is an arithmetic number, because the mean of its divisors is an integer number (372311665).

Almost surely, 2^744623329 is an apocalyptic number.

It is an amenable number.

744623329 is a deficient number, since it is larger than the sum of its proper divisors (1).

744623329 is an equidigital number, since it uses as much as digits as its factorization.

744623329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 40.

The square root of 744623329 is about 27287.7871766840. The cubic root of 744623329 is about 906.3839631120.

The spelling of 744623329 in words is "seven hundred forty-four million, six hundred twenty-three thousand, three hundred twenty-nine".