38648833 has 2 divisors, whose sum is σ = 38648834. Its totient is φ = 38648832.

The previous prime is 38648821. The next prime is 38648843. The reversal of 38648833 is 33884683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25522704 + 13126129 = 5052^2 + 3623^2 .

It is a cyclic number.

It is not a de Polignac number, because 38648833 - 2²¹ = 36551681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38648833.

It is not a weakly prime, because it can be changed into another prime (38648843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19324416 + 19324417.

It is an arithmetic number, because the mean of its divisors is an integer number (19324417).

Almost surely, 2^38648833 is an apocalyptic number.

It is an amenable number.

38648833 is a deficient number, since it is larger than the sum of its proper divisors (1).

38648833 is an equidigital number, since it uses as much as digits as its factorization.

38648833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 43.

The square root of 38648833 is about 6216.8185593598. The cubic root of 38648833 is about 338.1002264540.

The spelling of 38648833 in words is "thirty-eight million, six hundred forty-eight thousand, eight hundred thirty-three".