745044347 has 4 divisors (see below), whose sum is σ = 748826496. Its totient is φ = 741262200.

The previous prime is 745044331. The next prime is 745044371. The reversal of 745044347 is 743440547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743440547 = 14557 ⋅51071.

It is a cyclic number.

It is not a de Polignac number, because 745044347 - 2⁴ = 745044331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745044347.

It is not an unprimeable number, because it can be changed into a prime (745044647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1890779 + ... + 1891172.

It is an arithmetic number, because the mean of its divisors is an integer number (187206624).

Almost surely, 2^745044347 is an apocalyptic number.

745044347 is a deficient number, since it is larger than the sum of its proper divisors (3782149).

745044347 is a wasteful number, since it uses less digits than its factorization.

745044347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782148.

The product of its (nonzero) digits is 188160, while the sum is 38.

The square root of 745044347 is about 27295.5004900075. The cubic root of 745044347 is about 906.5547573244.

The spelling of 745044347 in words is "seven hundred forty-five million, forty-four thousand, three hundred forty-seven".