966989663 has 2 divisors, whose sum is σ = 966989664. Its totient is φ = 966989662.

The previous prime is 966989651. The next prime is 966989693. The reversal of 966989663 is 366989669.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 966989663 - 2⁸ = 966989407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 966989596 and 966989605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966989693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483494831 + 483494832.

It is an arithmetic number, because the mean of its divisors is an integer number (483494832).

Almost surely, 2^966989663 is an apocalyptic number.

966989663 is a deficient number, since it is larger than the sum of its proper divisors (1).

966989663 is an equidigital number, since it uses as much as digits as its factorization.

966989663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22674816, while the sum is 62.

The square root of 966989663 is about 31096.4574027332. The cubic root of 966989663 is about 988.8732080196.

The spelling of 966989663 in words is "nine hundred sixty-six million, nine hundred eighty-nine thousand, six hundred sixty-three".