43279345 has 4 divisors (see below), whose sum is σ = 51935220. Its totient is φ = 34623472.

The previous prime is 43279343. The next prime is 43279349. The reversal of 43279345 is 54397234.

43279345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32729841 + 10549504 = 5721^2 + 3248^2 .

It is a cyclic number.

It is not a de Polignac number, because 43279345 - 2¹ = 43279343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43279343) 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 in 3 ways as a sum of consecutive naturals, for example, 4327930 + ... + 4327939.

It is an arithmetic number, because the mean of its divisors is an integer number (12983805).

Almost surely, 2^43279345 is an apocalyptic number.

It is an amenable number.

43279345 is a deficient number, since it is larger than the sum of its proper divisors (8655875).

43279345 is an equidigital number, since it uses as much as digits as its factorization.

43279345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8655874.

The product of its digits is 90720, while the sum is 37.

The square root of 43279345 is about 6578.7038997055. The cubic root of 43279345 is about 351.0968177439.

The spelling of 43279345 in words is "forty-three million, two hundred seventy-nine thousand, three hundred forty-five".