9736381 has 2 divisors, whose sum is σ = 9736382. Its totient is φ = 9736380.

The previous prime is 9736351. The next prime is 9736409. The reversal of 9736381 is 1836379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8173881 + 1562500 = 2859^2 + 1250^2 .

It is an emirp because it is prime and its reverse (1836379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9736381 - 2⁷ = 9736253 is a prime.

It is a super-2 number, since 2×9736381² = 189594229954322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9736381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9736351) 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, 4868190 + 4868191.

It is an arithmetic number, because the mean of its divisors is an integer number (4868191).

Almost surely, 2^9736381 is an apocalyptic number.

It is an amenable number.

9736381 is a deficient number, since it is larger than the sum of its proper divisors (1).

9736381 is an equidigital number, since it uses as much as digits as its factorization.

9736381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 9736381 is about 3120.3174517988. The cubic root of 9736381 is about 213.5334187806.

The spelling of 9736381 in words is "nine million, seven hundred thirty-six thousand, three hundred eighty-one".