744785399 has 2 divisors, whose sum is σ = 744785400. Its totient is φ = 744785398.

The previous prime is 744785341. The next prime is 744785401. The reversal of 744785399 is 993587447.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 744785399 - 2¹⁶ = 744719863 is a prime.

It is a Sophie Germain prime.

Together with 744785401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (744785329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372392699 + 372392700.

It is an arithmetic number, because the mean of its divisors is an integer number (372392700).

Almost surely, 2^744785399 is an apocalyptic number.

744785399 is a deficient number, since it is larger than the sum of its proper divisors (1).

744785399 is an equidigital number, since it uses as much as digits as its factorization.

744785399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 56.

The square root of 744785399 is about 27290.7566586198. The cubic root of 744785399 is about 906.4497176069.

The spelling of 744785399 in words is "seven hundred forty-four million, seven hundred eighty-five thousand, three hundred ninety-nine".