9706634621 has 2 divisors, whose sum is σ = 9706634622. Its totient is φ = 9706634620.

The previous prime is 9706634603. The next prime is 9706634669. The reversal of 9706634621 is 1264366079.

9706634621 is digitally balanced in base 3, 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., 8966196100 + 740438521 = 94690^2 + 27211^2 .

It is an emirp because it is prime and its reverse (1264366079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9706634621 - 2³⁰ = 8632892797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9706634681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4853317310 + 4853317311.

It is an arithmetic number, because the mean of its divisors is an integer number (4853317311).

Almost surely, 2^9706634621 is an apocalyptic number.

It is an amenable number.

9706634621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9706634621 is an equidigital number, since it uses as much as digits as its factorization.

9706634621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 9706634621 is about 98522.2544453790. The cubic root of 9706634621 is about 2133.1573606124.

The spelling of 9706634621 in words is "nine billion, seven hundred six million, six hundred thirty-four thousand, six hundred twenty-one".