966777671 has 2 divisors, whose sum is σ = 966777672. Its totient is φ = 966777670.

The previous prime is 966777631. The next prime is 966777683. The reversal of 966777671 is 176777669.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-966777671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966777631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483388835 + 483388836.

It is an arithmetic number, because the mean of its divisors is an integer number (483388836).

Almost surely, 2^966777671 is an apocalyptic number.

966777671 is a deficient number, since it is larger than the sum of its proper divisors (1).

966777671 is an equidigital number, since it uses as much as digits as its factorization.

966777671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4667544, while the sum is 56.

The square root of 966777671 is about 31093.0485961091. The cubic root of 966777671 is about 988.8009395703.

The spelling of 966777671 in words is "nine hundred sixty-six million, seven hundred seventy-seven thousand, six hundred seventy-one".