38799109 has 2 divisors, whose sum is σ = 38799110. Its totient is φ = 38799108.

The previous prime is 38799107. The next prime is 38799119. The reversal of 38799109 is 90199783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20223009 + 18576100 = 4497^2 + 4310^2 .

It is a cyclic number.

It is not a de Polignac number, because 38799109 - 2¹ = 38799107 is a prime.

Together with 38799107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38799107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19399554 + 19399555.

It is an arithmetic number, because the mean of its divisors is an integer number (19399555).

Almost surely, 2^38799109 is an apocalyptic number.

It is an amenable number.

38799109 is a deficient number, since it is larger than the sum of its proper divisors (1).

38799109 is an equidigital number, since it uses as much as digits as its factorization.

38799109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 38799109 is about 6228.8930798337. The cubic root of 38799109 is about 338.5378648496.

The spelling of 38799109 in words is "thirty-eight million, seven hundred ninety-nine thousand, one hundred nine".