9676309661 has 2 divisors, whose sum is σ = 9676309662. Its totient is φ = 9676309660.

The previous prime is 9676309633. The next prime is 9676309703. The reversal of 9676309661 is 1669036769.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7827825625 + 1848484036 = 88475^2 + 42994^2 .

It is a cyclic number.

It is not a de Polignac number, because 9676309661 - 2¹⁸ = 9676047517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9676309061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4838154830 + 4838154831.

It is an arithmetic number, because the mean of its divisors is an integer number (4838154831).

Almost surely, 2^9676309661 is an apocalyptic number.

It is an amenable number.

9676309661 is a deficient number, since it is larger than the sum of its proper divisors (1).

9676309661 is an equidigital number, since it uses as much as digits as its factorization.

9676309661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 53.

The square root of 9676309661 is about 98368.2350202544. The cubic root of 9676309661 is about 2130.9336103567.

The spelling of 9676309661 in words is "nine billion, six hundred seventy-six million, three hundred nine thousand, six hundred sixty-one".