38909833 has 2 divisors, whose sum is σ = 38909834. Its totient is φ = 38909832.

The previous prime is 38909809. The next prime is 38909837. The reversal of 38909833 is 33890983.

38909833 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 can be written as a sum of positive squares in only one way, i.e., 28334329 + 10575504 = 5323^2 + 3252^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38909833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38909833.

It is not a weakly prime, because it can be changed into another prime (38909837) 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, 19454916 + 19454917.

It is an arithmetic number, because the mean of its divisors is an integer number (19454917).

Almost surely, 2^38909833 is an apocalyptic number.

It is an amenable number.

38909833 is a deficient number, since it is larger than the sum of its proper divisors (1).

38909833 is an equidigital number, since it uses as much as digits as its factorization.

38909833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 38909833 is about 6237.7746833306. The cubic root of 38909833 is about 338.8595961701.

The spelling of 38909833 in words is "thirty-eight million, nine hundred nine thousand, eight hundred thirty-three".