9938367379 has 2 divisors, whose sum is σ = 9938367380. Its totient is φ = 9938367378.

The previous prime is 9938367359. The next prime is 9938367409. The reversal of 9938367379 is 9737638399.

It is a weak prime.

It is an emirp because it is prime and its reverse (9737638399) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9938367379 is a prime.

It is a super-2 number, since 2×9938367379² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9938367379.

It is not a weakly prime, because it can be changed into another prime (9938367359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4969183689 + 4969183690.

It is an arithmetic number, because the mean of its divisors is an integer number (4969183690).

Almost surely, 2^9938367379 is an apocalyptic number.

9938367379 is a deficient number, since it is larger than the sum of its proper divisors (1).

9938367379 is an equidigital number, since it uses as much as digits as its factorization.

9938367379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46294416, while the sum is 64.

The square root of 9938367379 is about 99691.3606036150. The cubic root of 9938367379 is about 2149.9994504415. Note that the first 3 decimals are identical.

The spelling of 9938367379 in words is "nine billion, nine hundred thirty-eight million, three hundred sixty-seven thousand, three hundred seventy-nine".