744147641 has 2 divisors, whose sum is σ = 744147642. Its totient is φ = 744147640.

The previous prime is 744147631. The next prime is 744147643. The reversal of 744147641 is 146741447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404814400 + 339333241 = 20120^2 + 18421^2 .

It is an emirp because it is prime and its reverse (146741447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 744147641 - 2⁶ = 744147577 is a prime.

Together with 744147643, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 744147595 and 744147604.

It is not a weakly prime, because it can be changed into another prime (744147643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372073820 + 372073821.

It is an arithmetic number, because the mean of its divisors is an integer number (372073821).

Almost surely, 2^744147641 is an apocalyptic number.

It is an amenable number.

744147641 is a deficient number, since it is larger than the sum of its proper divisors (1).

744147641 is an equidigital number, since it uses as much as digits as its factorization.

744147641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 38.

The square root of 744147641 is about 27279.0696505581. The cubic root of 744147641 is about 906.1909134620.

The spelling of 744147641 in words is "seven hundred forty-four million, one hundred forty-seven thousand, six hundred forty-one".