38056321 has 2 divisors, whose sum is σ = 38056322. Its totient is φ = 38056320.

The previous prime is 38056309. The next prime is 38056327. The reversal of 38056321 is 12365083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25553025 + 12503296 = 5055^2 + 3536^2 .

It is an emirp because it is prime and its reverse (12365083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38056321 - 2⁵ = 38056289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38056321.

It is not a weakly prime, because it can be changed into another prime (38056327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19028160 + 19028161.

It is an arithmetic number, because the mean of its divisors is an integer number (19028161).

Almost surely, 2^38056321 is an apocalyptic number.

It is an amenable number.

38056321 is a deficient number, since it is larger than the sum of its proper divisors (1).

38056321 is an equidigital number, since it uses as much as digits as its factorization.

38056321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 38056321 is about 6168.9805478701. The cubic root of 38056321 is about 336.3635550191.

The spelling of 38056321 in words is "thirty-eight million, fifty-six thousand, three hundred twenty-one".