43427901 has 16 divisors (see below), whose sum is σ = 66493440. Its totient is φ = 24934320.

The previous prime is 43427851. The next prime is 43427903. The reversal of 43427901 is 10972434.

It is a happy number.

43427901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43427901 - 2⁶ = 43427837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43427903) 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 15 ways as a sum of consecutive naturals, for example, 34005 + ... + 35258.

It is an arithmetic number, because the mean of its divisors is an integer number (4155840).

Almost surely, 2^43427901 is an apocalyptic number.

It is an amenable number.

43427901 is a deficient number, since it is larger than the sum of its proper divisors (23065539).

43427901 is a wasteful number, since it uses less digits than its factorization.

43427901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69296.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 43427901 is about 6589.9849013484. The cubic root of 43427901 is about 351.4980713182.

The spelling of 43427901 in words is "forty-three million, four hundred twenty-seven thousand, nine hundred one".