43214393 has 2 divisors, whose sum is σ = 43214394. Its totient is φ = 43214392.

The previous prime is 43214351. The next prime is 43214429. The reversal of 43214393 is 39341234.

43214393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30880249 + 12334144 = 5557^2 + 3512^2 .

It is a cyclic number.

It is not a de Polignac number, because 43214393 - 2⁶ = 43214329 is a prime.

It is equal to p_2616752 and since 43214393 and 2616752 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (43214333) 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, 21607196 + 21607197.

It is an arithmetic number, because the mean of its divisors is an integer number (21607197).

Almost surely, 2^43214393 is an apocalyptic number.

It is an amenable number.

43214393 is a deficient number, since it is larger than the sum of its proper divisors (1).

43214393 is an equidigital number, since it uses as much as digits as its factorization.

43214393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 43214393 is about 6573.7655114858. The cubic root of 43214393 is about 350.9210922099.

The spelling of 43214393 in words is "forty-three million, two hundred fourteen thousand, three hundred ninety-three".