39221983 has 2 divisors, whose sum is σ = 39221984. Its totient is φ = 39221982.

The previous prime is 39221971. The next prime is 39221989. The reversal of 39221983 is 38912293.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39221983 - 2⁹ = 39221471 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39221989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19610991 + 19610992.

It is an arithmetic number, because the mean of its divisors is an integer number (19610992).

Almost surely, 2^39221983 is an apocalyptic number.

39221983 is a deficient number, since it is larger than the sum of its proper divisors (1).

39221983 is an equidigital number, since it uses as much as digits as its factorization.

39221983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 39221983 is about 6262.7456438850. The cubic root of 39221983 is about 339.7633387674.

It can be divided in two parts, 39221 and 983, that added together give a palindrome (40204).

The spelling of 39221983 in words is "thirty-nine million, two hundred twenty-one thousand, nine hundred eighty-three".