38785321 has 2 divisors, whose sum is σ = 38785322. Its totient is φ = 38785320.

The previous prime is 38785297. The next prime is 38785333. The reversal of 38785321 is 12358783.

38785321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33767721 + 5017600 = 5811^2 + 2240^2 .

It is a cyclic number.

It is not a de Polignac number, because 38785321 - 2⁷ = 38785193 is a prime.

It is a super-2 number, since 2×38785321² = 3008602250146082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38780321) 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, 19392660 + 19392661.

It is an arithmetic number, because the mean of its divisors is an integer number (19392661).

Almost surely, 2^38785321 is an apocalyptic number.

It is an amenable number.

38785321 is a deficient number, since it is larger than the sum of its proper divisors (1).

38785321 is an equidigital number, since it uses as much as digits as its factorization.

38785321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 38785321 is about 6227.7862037806. The cubic root of 38785321 is about 338.4977581458.

The spelling of 38785321 in words is "thirty-eight million, seven hundred eighty-five thousand, three hundred twenty-one".