38964517 has 2 divisors, whose sum is σ = 38964518. Its totient is φ = 38964516.

The previous prime is 38964491. The next prime is 38964521. The reversal of 38964517 is 71546983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38862756 + 101761 = 6234^2 + 319^2 .

It is an emirp because it is prime and its reverse (71546983) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38964517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38964217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19482258 + 19482259.

It is an arithmetic number, because the mean of its divisors is an integer number (19482259).

Almost surely, 2^38964517 is an apocalyptic number.

It is an amenable number.

38964517 is a deficient number, since it is larger than the sum of its proper divisors (1).

38964517 is an equidigital number, since it uses as much as digits as its factorization.

38964517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 38964517 is about 6242.1564382832. The cubic root of 38964517 is about 339.0182666372.

The spelling of 38964517 in words is "thirty-eight million, nine hundred sixty-four thousand, five hundred seventeen".