745383893 has 2 divisors, whose sum is σ = 745383894. Its totient is φ = 745383892.

The previous prime is 745383829. The next prime is 745383901. The reversal of 745383893 is 398383547.

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., 742944049 + 2439844 = 27257^2 + 1562^2 .

It is an emirp because it is prime and its reverse (398383547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 745383893 - 2⁶ = 745383829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745383593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372691946 + 372691947.

It is an arithmetic number, because the mean of its divisors is an integer number (372691947).

Almost surely, 2^745383893 is an apocalyptic number.

It is an amenable number.

745383893 is a deficient number, since it is larger than the sum of its proper divisors (1).

745383893 is an equidigital number, since it uses as much as digits as its factorization.

745383893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 50.

The square root of 745383893 is about 27301.7195978568. The cubic root of 745383893 is about 906.6924539565.

The spelling of 745383893 in words is "seven hundred forty-five million, three hundred eighty-three thousand, eight hundred ninety-three".