745395899 has 4 divisors (see below), whose sum is σ = 769440960. Its totient is φ = 721350840.

The previous prime is 745395887. The next prime is 745395907. The reversal of 745395899 is 998593547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998593547 = 7 ⋅142656221.

It is a cyclic number.

It is not a de Polignac number, because 745395899 - 2²⁰ = 744347323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745395199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12022484 + ... + 12022545.

It is an arithmetic number, because the mean of its divisors is an integer number (192360240).

Almost surely, 2^745395899 is an apocalyptic number.

745395899 is a deficient number, since it is larger than the sum of its proper divisors (24045061).

745395899 is a wasteful number, since it uses less digits than its factorization.

745395899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24045060.

The product of its digits is 12247200, while the sum is 59.

The square root of 745395899 is about 27301.9394732316. The cubic root of 745395899 is about 906.6973220033.

The spelling of 745395899 in words is "seven hundred forty-five million, three hundred ninety-five thousand, eight hundred ninety-nine".