43676393 has 2 divisors, whose sum is σ = 43676394. Its totient is φ = 43676392.

The previous prime is 43676377. The next prime is 43676401. The reversal of 43676393 is 39367634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34140649 + 9535744 = 5843^2 + 3088^2 .

It is a cyclic number.

It is not a de Polignac number, because 43676393 - 2⁴ = 43676377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43676393.

It is not a weakly prime, because it can be changed into another prime (43676323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21838196 + 21838197.

It is an arithmetic number, because the mean of its divisors is an integer number (21838197).

Almost surely, 2^43676393 is an apocalyptic number.

It is an amenable number.

43676393 is a deficient number, since it is larger than the sum of its proper divisors (1).

43676393 is an equidigital number, since it uses as much as digits as its factorization.

43676393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 41.

The square root of 43676393 is about 6608.8117691458. The cubic root of 43676393 is about 352.1672140501.

The spelling of 43676393 in words is "forty-three million, six hundred seventy-six thousand, three hundred ninety-three".