39396281 has 2 divisors, whose sum is σ = 39396282. Its totient is φ = 39396280.

The previous prime is 39396241. The next prime is 39396283. The reversal of 39396281 is 18269393.

39396281 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., 30426256 + 8970025 = 5516^2 + 2995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39396281 is a prime.

It is a super-2 number, since 2×39396281² = 3104133913261922, which contains 22 as substring.

Together with 39396283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39396283) 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, 19698140 + 19698141.

It is an arithmetic number, because the mean of its divisors is an integer number (19698141).

Almost surely, 2^39396281 is an apocalyptic number.

It is an amenable number.

39396281 is a deficient number, since it is larger than the sum of its proper divisors (1).

39396281 is an equidigital number, since it uses as much as digits as its factorization.

39396281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 39396281 is about 6276.6456806164. The cubic root of 39396281 is about 340.2658848689.

The spelling of 39396281 in words is "thirty-nine million, three hundred ninety-six thousand, two hundred eighty-one".