43425647 has 2 divisors, whose sum is σ = 43425648. Its totient is φ = 43425646.

The previous prime is 43425643. The next prime is 43425649. The reversal of 43425647 is 74652434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43425647 - 2² = 43425643 is a prime.

Together with 43425649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43425643) 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 as a sum of consecutive naturals, namely, 21712823 + 21712824.

It is an arithmetic number, because the mean of its divisors is an integer number (21712824).

Almost surely, 2^43425647 is an apocalyptic number.

43425647 is a deficient number, since it is larger than the sum of its proper divisors (1).

43425647 is an equidigital number, since it uses as much as digits as its factorization.

43425647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 35.

The square root of 43425647 is about 6589.8138820455. The cubic root of 43425647 is about 351.4919900483.

The spelling of 43425647 in words is "forty-three million, four hundred twenty-five thousand, six hundred forty-seven".