744648973 has 2 divisors, whose sum is σ = 744648974. Its totient is φ = 744648972.

The previous prime is 744648941. The next prime is 744648991. The reversal of 744648973 is 379846447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659308329 + 85340644 = 25677^2 + 9238^2 .

It is a cyclic number.

It is not a de Polignac number, because 744648973 - 2⁵ = 744648941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 744648973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (744648913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372324486 + 372324487.

It is an arithmetic number, because the mean of its divisors is an integer number (372324487).

Almost surely, 2^744648973 is an apocalyptic number.

It is an amenable number.

744648973 is a deficient number, since it is larger than the sum of its proper divisors (1).

744648973 is an equidigital number, since it uses as much as digits as its factorization.

744648973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 52.

The square root of 744648973 is about 27288.2570531722. The cubic root of 744648973 is about 906.3943679447.

The spelling of 744648973 in words is "seven hundred forty-four million, six hundred forty-eight thousand, nine hundred seventy-three".