38798009 has 2 divisors, whose sum is σ = 38798010. Its totient is φ = 38798008.

The previous prime is 38798003. The next prime is 38798017. The reversal of 38798009 is 90089783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34810000 + 3988009 = 5900^2 + 1997^2 .

It is a cyclic number.

It is not a de Polignac number, because 38798009 - 2²⁴ = 22020793 is a prime.

It is not a weakly prime, because it can be changed into another prime (38798003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19399004 + 19399005.

It is an arithmetic number, because the mean of its divisors is an integer number (19399005).

Almost surely, 2^38798009 is an apocalyptic number.

It is an amenable number.

38798009 is a deficient number, since it is larger than the sum of its proper divisors (1).

38798009 is an equidigital number, since it uses as much as digits as its factorization.

38798009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 38798009 is about 6228.8047810154. The cubic root of 38798009 is about 338.5346655049.

The spelling of 38798009 in words is "thirty-eight million, seven hundred ninety-eight thousand, nine".