38365643 has 2 divisors, whose sum is σ = 38365644. Its totient is φ = 38365642.

The previous prime is 38365609. The next prime is 38365667. The reversal of 38365643 is 34656383.

38365643 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 is a cyclic number.

It is not a de Polignac number, because 38365643 - 2⁸ = 38365387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38365597 and 38365606.

It is not a weakly prime, because it can be changed into another prime (38365673) 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, 19182821 + 19182822.

It is an arithmetic number, because the mean of its divisors is an integer number (19182822).

Almost surely, 2^38365643 is an apocalyptic number.

38365643 is a deficient number, since it is larger than the sum of its proper divisors (1).

38365643 is an equidigital number, since it uses as much as digits as its factorization.

38365643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 38.

The square root of 38365643 is about 6194.0005650629. Note that the first 3 decimals coincide. The cubic root of 38365643 is about 337.2724186809.

The spelling of 38365643 in words is "thirty-eight million, three hundred sixty-five thousand, six hundred forty-three".