38643103 has 2 divisors, whose sum is σ = 38643104. Its totient is φ = 38643102.

The previous prime is 38643097. The next prime is 38643107. The reversal of 38643103 is 30134683.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38643103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38643107) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19321551 + 19321552.

It is an arithmetic number, because the mean of its divisors is an integer number (19321552).

Almost surely, 2^38643103 is an apocalyptic number.

38643103 is a deficient number, since it is larger than the sum of its proper divisors (1).

38643103 is an equidigital number, since it uses as much as digits as its factorization.

38643103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 38643103 is about 6216.3576956285. The cubic root of 38643103 is about 338.0835169365.

Adding to 38643103 its reverse (30134683), we get a palindrome (68777786).

The spelling of 38643103 in words is "thirty-eight million, six hundred forty-three thousand, one hundred three".