43404953 has 2 divisors, whose sum is σ = 43404954. Its totient is φ = 43404952.

The previous prime is 43404947. The next prime is 43404983. The reversal of 43404953 is 35940434.

43404953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43388569 + 16384 = 6587^2 + 128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43404953 is a prime.

It is not a weakly prime, because it can be changed into another prime (43404913) 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 as a sum of consecutive naturals, namely, 21702476 + 21702477.

It is an arithmetic number, because the mean of its divisors is an integer number (21702477).

Almost surely, 2^43404953 is an apocalyptic number.

It is an amenable number.

43404953 is a deficient number, since it is larger than the sum of its proper divisors (1).

43404953 is an equidigital number, since it uses as much as digits as its factorization.

43404953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 43404953 is about 6588.2435443751. The cubic root of 43404953 is about 351.4361480021.

The spelling of 43404953 in words is "forty-three million, four hundred four thousand, nine hundred fifty-three".