38889901 has 2 divisors, whose sum is σ = 38889902. Its totient is φ = 38889900.

The previous prime is 38889869. The next prime is 38889911. The reversal of 38889901 is 10998883.

38889901 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., 19758025 + 19131876 = 4445^2 + 4374^2 .

It is a cyclic number.

It is not a de Polignac number, because 38889901 - 2⁵ = 38889869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38889911) 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, 19444950 + 19444951.

It is an arithmetic number, because the mean of its divisors is an integer number (19444951).

Almost surely, 2^38889901 is an apocalyptic number.

It is an amenable number.

38889901 is a deficient number, since it is larger than the sum of its proper divisors (1).

38889901 is an equidigital number, since it uses as much as digits as its factorization.

38889901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 38889901 is about 6236.1767935170. The cubic root of 38889901 is about 338.8017247396.

The spelling of 38889901 in words is "thirty-eight million, eight hundred eighty-nine thousand, nine hundred one".