745309793 has 2 divisors, whose sum is σ = 745309794. Its totient is φ = 745309792.

The previous prime is 745309769. The next prime is 745309813. The reversal of 745309793 is 397903547.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 664453729 + 80856064 = 25777^2 + 8992^2 .

It is a cyclic number.

It is not a de Polignac number, because 745309793 - 2¹⁰ = 745308769 is a prime.

It is not a weakly prime, because it can be changed into another prime (745309703) 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, 372654896 + 372654897.

It is an arithmetic number, because the mean of its divisors is an integer number (372654897).

Almost surely, 2^745309793 is an apocalyptic number.

It is an amenable number.

745309793 is a deficient number, since it is larger than the sum of its proper divisors (1).

745309793 is an equidigital number, since it uses as much as digits as its factorization.

745309793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 714420, while the sum is 47.

The square root of 745309793 is about 27300.3625067507. The cubic root of 745309793 is about 906.6624076327.

The spelling of 745309793 in words is "seven hundred forty-five million, three hundred nine thousand, seven hundred ninety-three".