38378929 has 2 divisors, whose sum is σ = 38378930. Its totient is φ = 38378928.

The previous prime is 38378909. The next prime is 38378983. The reversal of 38378929 is 92987383.

38378929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29811600 + 8567329 = 5460^2 + 2927^2 .

It is a cyclic number.

It is not a de Polignac number, because 38378929 - 2¹³ = 38370737 is a prime.

It is not a weakly prime, because it can be changed into another prime (38378909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19189464 + 19189465.

It is an arithmetic number, because the mean of its divisors is an integer number (19189465).

Almost surely, 2^38378929 is an apocalyptic number.

It is an amenable number.

38378929 is a deficient number, since it is larger than the sum of its proper divisors (1).

38378929 is an equidigital number, since it uses as much as digits as its factorization.

38378929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The square root of 38378929 is about 6195.0729616365. The cubic root of 38378929 is about 337.3113466022.

The spelling of 38378929 in words is "thirty-eight million, three hundred seventy-eight thousand, nine hundred twenty-nine".