38700839 has 2 divisors, whose sum is σ = 38700840. Its totient is φ = 38700838.

The previous prime is 38700833. The next prime is 38700863. The reversal of 38700839 is 93800783.

38700839 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 is an emirp because it is prime and its reverse (93800783) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38700839 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38700833) 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, 19350419 + 19350420.

It is an arithmetic number, because the mean of its divisors is an integer number (19350420).

Almost surely, 2^38700839 is an apocalyptic number.

38700839 is a deficient number, since it is larger than the sum of its proper divisors (1).

38700839 is an equidigital number, since it uses as much as digits as its factorization.

38700839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 38700839 is about 6220.9998392541. Note that the first 3 decimals coincide. The cubic root of 38700839 is about 338.2518080863.

The spelling of 38700839 in words is "thirty-eight million, seven hundred thousand, eight hundred thirty-nine".