38790439 has 2 divisors, whose sum is σ = 38790440. Its totient is φ = 38790438.

The previous prime is 38790407. The next prime is 38790497. The reversal of 38790439 is 93409783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38790439 - 2⁵ = 38790407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38790395 and 38790404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38710439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19395219 + 19395220.

It is an arithmetic number, because the mean of its divisors is an integer number (19395220).

Almost surely, 2^38790439 is an apocalyptic number.

38790439 is a deficient number, since it is larger than the sum of its proper divisors (1).

38790439 is an equidigital number, since it uses as much as digits as its factorization.

38790439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 38790439 is about 6228.1970906515. The cubic root of 38790439 is about 338.5126465562.

The spelling of 38790439 in words is "thirty-eight million, seven hundred ninety thousand, four hundred thirty-nine".