43424047 has 2 divisors, whose sum is σ = 43424048. Its totient is φ = 43424046.

The previous prime is 43424033. The next prime is 43424071. The reversal of 43424047 is 74042434.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43424047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43424947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21712023 + 21712024.

It is an arithmetic number, because the mean of its divisors is an integer number (21712024).

Almost surely, 2^43424047 is an apocalyptic number.

43424047 is a deficient number, since it is larger than the sum of its proper divisors (1).

43424047 is an equidigital number, since it uses as much as digits as its factorization.

43424047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 43424047 is about 6589.6924814440. The cubic root of 43424047 is about 351.4876731363.

The spelling of 43424047 in words is "forty-three million, four hundred twenty-four thousand, forty-seven".