38821339 has 2 divisors, whose sum is σ = 38821340. Its totient is φ = 38821338.

The previous prime is 38821337. The next prime is 38821357. The reversal of 38821339 is 93312883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38821339 - 2¹ = 38821337 is a prime.

Together with 38821337, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 38821298 and 38821307.

It is not a weakly prime, because it can be changed into another prime (38821333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19410669 + 19410670.

It is an arithmetic number, because the mean of its divisors is an integer number (19410670).

Almost surely, 2^38821339 is an apocalyptic number.

38821339 is a deficient number, since it is larger than the sum of its proper divisors (1).

38821339 is an equidigital number, since it uses as much as digits as its factorization.

38821339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 38821339 is about 6230.6772505082. The cubic root of 38821339 is about 338.6025077422.

The spelling of 38821339 in words is "thirty-eight million, eight hundred twenty-one thousand, three hundred thirty-nine".