966077681 has 2 divisors, whose sum is σ = 966077682. Its totient is φ = 966077680.

The previous prime is 966077663. The next prime is 966077699. The reversal of 966077681 is 186770669.

It is a balanced prime because it is at equal distance from previous prime (966077663) and next prime (966077699).

It can be written as a sum of positive squares in only one way, i.e., 521711281 + 444366400 = 22841^2 + 21080^2 .

It is an emirp because it is prime and its reverse (186770669) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-966077681 is a prime.

It is a super-2 number, since 2×966077681² = 1866612171452675522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (966077081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483038840 + 483038841.

It is an arithmetic number, because the mean of its divisors is an integer number (483038841).

Almost surely, 2^966077681 is an apocalyptic number.

It is an amenable number.

966077681 is a deficient number, since it is larger than the sum of its proper divisors (1).

966077681 is an equidigital number, since it uses as much as digits as its factorization.

966077681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 966077681 is about 31081.7901833212. The cubic root of 966077681 is about 988.5622366755.

The spelling of 966077681 in words is "nine hundred sixty-six million, seventy-seven thousand, six hundred eighty-one".