9843484957 has 2 divisors, whose sum is σ = 9843484958. Its totient is φ = 9843484956.

The previous prime is 9843484939. The next prime is 9843484979. The reversal of 9843484957 is 7594843489.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5369079076 + 4474405881 = 73274^2 + 66891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9843484957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9843484895 and 9843484904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9843487957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4921742478 + 4921742479.

It is an arithmetic number, because the mean of its divisors is an integer number (4921742479).

Almost surely, 2^9843484957 is an apocalyptic number.

It is an amenable number.

9843484957 is a deficient number, since it is larger than the sum of its proper divisors (1).

9843484957 is an equidigital number, since it uses as much as digits as its factorization.

9843484957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 61.

The square root of 9843484957 is about 99214.3384647602. The cubic root of 9843484957 is about 2143.1354855898.

The spelling of 9843484957 in words is "nine billion, eight hundred forty-three million, four hundred eighty-four thousand, nine hundred fifty-seven".