39222943 has 2 divisors, whose sum is σ = 39222944. Its totient is φ = 39222942.

The previous prime is 39222941. The next prime is 39222949. The reversal of 39222943 is 34922293.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39222943 - 2¹ = 39222941 is a prime.

Together with 39222941, it forms a pair of twin primes.

It is equal to p_2389156 and since 39222943 and 2389156 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 39222899 and 39222908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39222941) 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, 19611471 + 19611472.

It is an arithmetic number, because the mean of its divisors is an integer number (19611472).

Almost surely, 2^39222943 is an apocalyptic number.

39222943 is a deficient number, since it is larger than the sum of its proper divisors (1).

39222943 is an equidigital number, since it uses as much as digits as its factorization.

39222943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 34.

The square root of 39222943 is about 6262.8222871162. The cubic root of 39222943 is about 339.7661107686.

The spelling of 39222943 in words is "thirty-nine million, two hundred twenty-two thousand, nine hundred forty-three".