43636379 has 2 divisors, whose sum is σ = 43636380. Its totient is φ = 43636378.

The previous prime is 43636349. The next prime is 43636393. The reversal of 43636379 is 97363634.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43636379 - 2¹⁶ = 43570843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43636319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21818189 + 21818190.

It is an arithmetic number, because the mean of its divisors is an integer number (21818190).

Almost surely, 2^43636379 is an apocalyptic number.

43636379 is a deficient number, since it is larger than the sum of its proper divisors (1).

43636379 is an equidigital number, since it uses as much as digits as its factorization.

43636379 is an odious number, because the sum of its binary digits is odd.

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

The square root of 43636379 is about 6605.7837536510. The cubic root of 43636379 is about 352.0596355357.

The spelling of 43636379 in words is "forty-three million, six hundred thirty-six thousand, three hundred seventy-nine".