43421713 has 2 divisors, whose sum is σ = 43421714. Its totient is φ = 43421712.

The previous prime is 43421687. The next prime is 43421717. The reversal of 43421713 is 31712434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41254929 + 2166784 = 6423^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 43421713 - 2²⁵ = 9867281 is a prime.

It is not a weakly prime, because it can be changed into another prime (43421717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21710856 + 21710857.

It is an arithmetic number, because the mean of its divisors is an integer number (21710857).

Almost surely, 2^43421713 is an apocalyptic number.

It is an amenable number.

43421713 is a deficient number, since it is larger than the sum of its proper divisors (1).

43421713 is an equidigital number, since it uses as much as digits as its factorization.

43421713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 25.

The square root of 43421713 is about 6589.5153843056. The cubic root of 43421713 is about 351.4813756507.

The spelling of 43421713 in words is "forty-three million, four hundred twenty-one thousand, seven hundred thirteen".