43947316 has 18 divisors (see below), whose sum is σ = 89464578. Its totient is φ = 18834480.

The previous prime is 43947311. The next prime is 43947317. The reversal of 43947316 is 61374934.

43947316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 29658916 + 14288400 = 5446^2 + 3780^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43947311) 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 5 ways as a sum of consecutive naturals, for example, 111915 + ... + 112306.

Almost surely, 2^43947316 is an apocalyptic number.

It is an amenable number.

43947316 is an abundant number, since it is smaller than the sum of its proper divisors (45517262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43947316 is a wasteful number, since it uses less digits than its factorization.

43947316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224239 (or 224230 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

The square root of 43947316 is about 6629.2771853348. The cubic root of 43947316 is about 352.8938735668.

The spelling of 43947316 in words is "forty-three million, nine hundred forty-seven thousand, three hundred sixteen".