38908439 has 2 divisors, whose sum is σ = 38908440. Its totient is φ = 38908438.

The previous prime is 38908417. The next prime is 38908451. The reversal of 38908439 is 93480983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38908439 - 2⁸ = 38908183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38908439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38908739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19454219 + 19454220.

It is an arithmetic number, because the mean of its divisors is an integer number (19454220).

Almost surely, 2^38908439 is an apocalyptic number.

38908439 is a deficient number, since it is larger than the sum of its proper divisors (1).

38908439 is an equidigital number, since it uses as much as digits as its factorization.

38908439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 38908439 is about 6237.6629437635. The cubic root of 38908439 is about 338.8555494131.

The spelling of 38908439 in words is "thirty-eight million, nine hundred eight thousand, four hundred thirty-nine".