38869109 has 2 divisors, whose sum is σ = 38869110. Its totient is φ = 38869108.

The previous prime is 38869097. The next prime is 38869169. The reversal of 38869109 is 90196883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32604100 + 6265009 = 5710^2 + 2503^2 .

It is a cyclic number.

It is not a de Polignac number, because 38869109 - 2⁴ = 38869093 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38869109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38869169) 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, 19434554 + 19434555.

It is an arithmetic number, because the mean of its divisors is an integer number (19434555).

Almost surely, 2^38869109 is an apocalyptic number.

It is an amenable number.

38869109 is a deficient number, since it is larger than the sum of its proper divisors (1).

38869109 is an equidigital number, since it uses as much as digits as its factorization.

38869109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 38869109 is about 6234.5095236113. The cubic root of 38869109 is about 338.7413352722.

The spelling of 38869109 in words is "thirty-eight million, eight hundred sixty-nine thousand, one hundred nine".