38841839 has 2 divisors, whose sum is σ = 38841840. Its totient is φ = 38841838.

The previous prime is 38841809. The next prime is 38841841. The reversal of 38841839 is 93814883.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38841839 is a prime.

It is a Sophie Germain prime.

Together with 38841841, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38841839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38841809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19420919 + 19420920.

It is an arithmetic number, because the mean of its divisors is an integer number (19420920).

Almost surely, 2^38841839 is an apocalyptic number.

38841839 is a deficient number, since it is larger than the sum of its proper divisors (1).

38841839 is an equidigital number, since it uses as much as digits as its factorization.

38841839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 44.

The square root of 38841839 is about 6232.3221194030. The cubic root of 38841839 is about 338.6620980785.

The spelling of 38841839 in words is "thirty-eight million, eight hundred forty-one thousand, eight hundred thirty-nine".