983734981 has 2 divisors, whose sum is σ = 983734982. Its totient is φ = 983734980.

The previous prime is 983734963. The next prime is 983735003. The reversal of 983734981 is 189437389.

983734981 is digitally balanced in base 2, 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., 983386881 + 348100 = 31359^2 + 590^2 .

It is an emirp because it is prime and its reverse (189437389) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 983734981 - 2⁹ = 983734469 is a prime.

It is a super-2 number, since 2×983734981² = 1935469025686140722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (983734681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491867490 + 491867491.

It is an arithmetic number, because the mean of its divisors is an integer number (491867491).

Almost surely, 2^983734981 is an apocalyptic number.

It is an amenable number.

983734981 is a deficient number, since it is larger than the sum of its proper divisors (1).

983734981 is an equidigital number, since it uses as much as digits as its factorization.

983734981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 52.

The square root of 983734981 is about 31364.5497496776. The cubic root of 983734981 is about 994.5486639343.

The spelling of 983734981 in words is "nine hundred eighty-three million, seven hundred thirty-four thousand, nine hundred eighty-one".