9764981 has 2 divisors, whose sum is σ = 9764982. Its totient is φ = 9764980.

The previous prime is 9764977. The next prime is 9765001. The reversal of 9764981 is 1894679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4990756 + 4774225 = 2234^2 + 2185^2 .

It is a cyclic number.

It is not a de Polignac number, because 9764981 - 2² = 9764977 is a prime.

It is a super-2 number, since 2×9764981² = 190709707860722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9764921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4882490 + 4882491.

It is an arithmetic number, because the mean of its divisors is an integer number (4882491).

Almost surely, 2^9764981 is an apocalyptic number.

It is an amenable number.

9764981 is a deficient number, since it is larger than the sum of its proper divisors (1).

9764981 is an equidigital number, since it uses as much as digits as its factorization.

9764981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 9764981 is about 3124.8969583012. The cubic root of 9764981 is about 213.7422946734.

The spelling of 9764981 in words is "nine million, seven hundred sixty-four thousand, nine hundred eighty-one".