744397273 has 2 divisors, whose sum is σ = 744397274. Its totient is φ = 744397272.

The previous prime is 744397261. The next prime is 744397289. The reversal of 744397273 is 372793447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 643535424 + 100861849 = 25368^2 + 10043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-744397273 is a prime.

It is not a weakly prime, because it can be changed into another prime (744397223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372198636 + 372198637.

It is an arithmetic number, because the mean of its divisors is an integer number (372198637).

Almost surely, 2^744397273 is an apocalyptic number.

It is an amenable number.

744397273 is a deficient number, since it is larger than the sum of its proper divisors (1).

744397273 is an equidigital number, since it uses as much as digits as its factorization.

744397273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 46.

The square root of 744397273 is about 27283.6447895071. The cubic root of 744397273 is about 906.2922324956.

The spelling of 744397273 in words is "seven hundred forty-four million, three hundred ninety-seven thousand, two hundred seventy-three".