745356789 has 32 divisors (see below), whose sum is σ = 1175264640. Its totient is φ = 465244416.

The previous prime is 745356763. The next prime is 745356817. The reversal of 745356789 is 987653547.

745356789 is a `hidden beast` number, since 74 + 5 + 3 + 567 + 8 + 9 = 666.

It is not a de Polignac number, because 745356789 - 2⁹ = 745356277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745356889) 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 31 ways as a sum of consecutive naturals, for example, 86302 + ... + 94544.

It is an arithmetic number, because the mean of its divisors is an integer number (36727020).

Almost surely, 2^745356789 is an apocalyptic number.

It is an amenable number.

745356789 is a deficient number, since it is larger than the sum of its proper divisors (429907851).

745356789 is a wasteful number, since it uses less digits than its factorization.

745356789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8466 (or 8460 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The square root of 745356789 is about 27301.2232143543. The cubic root of 745356789 is about 906.6814639640.

The spelling of 745356789 in words is "seven hundred forty-five million, three hundred fifty-six thousand, seven hundred eighty-nine".