960489661 has 2 divisors, whose sum is σ = 960489662. Its totient is φ = 960489660.

The previous prime is 960489659. The next prime is 960489707. The reversal of 960489661 is 166984069.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 960380100 + 109561 = 30990^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 960489661 - 2¹ = 960489659 is a prime.

Together with 960489659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (960489961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480244830 + 480244831.

It is an arithmetic number, because the mean of its divisors is an integer number (480244831).

Almost surely, 2^960489661 is an apocalyptic number.

It is an amenable number.

960489661 is a deficient number, since it is larger than the sum of its proper divisors (1).

960489661 is an equidigital number, since it uses as much as digits as its factorization.

960489661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 960489661 is about 30991.7676327118. The cubic root of 960489661 is about 986.6525245391.

The spelling of 960489661 in words is "nine hundred sixty million, four hundred eighty-nine thousand, six hundred sixty-one".