744867841 has 2 divisors, whose sum is σ = 744867842. Its totient is φ = 744867840.

The previous prime is 744867839. The next prime is 744867847. The reversal of 744867841 is 148768447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511664400 + 233203441 = 22620^2 + 15271^2 .

It is a cyclic number.

It is not a de Polignac number, because 744867841 - 2¹ = 744867839 is a prime.

Together with 744867839, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (744867847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372433920 + 372433921.

It is an arithmetic number, because the mean of its divisors is an integer number (372433921).

Almost surely, 2^744867841 is an apocalyptic number.

It is an amenable number.

744867841 is a deficient number, since it is larger than the sum of its proper divisors (1).

744867841 is an equidigital number, since it uses as much as digits as its factorization.

744867841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1204224, while the sum is 49.

The square root of 744867841 is about 27292.2670549736. The cubic root of 744867841 is about 906.4831620373.

The spelling of 744867841 in words is "seven hundred forty-four million, eight hundred sixty-seven thousand, eight hundred forty-one".