9704642957 has 2 divisors, whose sum is σ = 9704642958. Its totient is φ = 9704642956.

The previous prime is 9704642917. The next prime is 9704642971. The reversal of 9704642957 is 7592464079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8160231556 + 1544411401 = 90334^2 + 39299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9704642957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9704642899 and 9704642908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9704642917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4852321478 + 4852321479.

It is an arithmetic number, because the mean of its divisors is an integer number (4852321479).

Almost surely, 2^9704642957 is an apocalyptic number.

It is an amenable number.

9704642957 is a deficient number, since it is larger than the sum of its proper divisors (1).

9704642957 is an equidigital number, since it uses as much as digits as its factorization.

9704642957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The square root of 9704642957 is about 98512.1462409585. The cubic root of 9704642957 is about 2133.0114527360.

The spelling of 9704642957 in words is "nine billion, seven hundred four million, six hundred forty-two thousand, nine hundred fifty-seven".