38961217 has 2 divisors, whose sum is σ = 38961218. Its totient is φ = 38961216.

The previous prime is 38961211. The next prime is 38961227. The reversal of 38961217 is 71216983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34762816 + 4198401 = 5896^2 + 2049^2 .

It is a cyclic number.

It is not a de Polignac number, because 38961217 - 2¹¹ = 38959169 is a prime.

It is not a weakly prime, because it can be changed into another prime (38961211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19480608 + 19480609.

It is an arithmetic number, because the mean of its divisors is an integer number (19480609).

Almost surely, 2^38961217 is an apocalyptic number.

It is an amenable number.

38961217 is a deficient number, since it is larger than the sum of its proper divisors (1).

38961217 is an equidigital number, since it uses as much as digits as its factorization.

38961217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 38961217 is about 6241.8921009578. The cubic root of 38961217 is about 339.0086956057.

The spelling of 38961217 in words is "thirty-eight million, nine hundred sixty-one thousand, two hundred seventeen".