10984781 has 2 divisors, whose sum is σ = 10984782. Its totient is φ = 10984780.

The previous prime is 10984769. The next prime is 10984783. The reversal of 10984781 is 18748901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 4583881 = 2530^2 + 2141^2 .

It is an emirp because it is prime and its reverse (18748901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10984781 is a prime.

It is a super-2 number, since 2×10984781² = 241330827235922, which contains 22 as substring.

Together with 10984783, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10984783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5492390 + 5492391.

It is an arithmetic number, because the mean of its divisors is an integer number (5492391).

Almost surely, 2^10984781 is an apocalyptic number.

It is an amenable number.

10984781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10984781 is an equidigital number, since it uses as much as digits as its factorization.

10984781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 10984781 is about 3314.3296456448. The cubic root of 10984781 is about 222.2953958008.

The spelling of 10984781 in words is "ten million, nine hundred eighty-four thousand, seven hundred eighty-one".