9790381 has 2 divisors, whose sum is σ = 9790382. Its totient is φ = 9790380.

The previous prime is 9790379. The next prime is 9790397. The reversal of 9790381 is 1830979.

9790381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9205156 + 585225 = 3034^2 + 765^2 .

It is a cyclic number.

It is not a de Polignac number, because 9790381 - 2¹ = 9790379 is a prime.

It is a super-2 number, since 2×9790381² = 191703120250322, which contains 22 as substring.

Together with 9790379, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9790381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9790331) 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, 4895190 + 4895191.

It is an arithmetic number, because the mean of its divisors is an integer number (4895191).

Almost surely, 2^9790381 is an apocalyptic number.

It is an amenable number.

9790381 is a deficient number, since it is larger than the sum of its proper divisors (1).

9790381 is an equidigital number, since it uses as much as digits as its factorization.

9790381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 9790381 is about 3128.9584529041. The cubic root of 9790381 is about 213.9274581621.

The spelling of 9790381 in words is "nine million, seven hundred ninety thousand, three hundred eighty-one".