9777671 has 2 divisors, whose sum is σ = 9777672. Its totient is φ = 9777670.

The previous prime is 9777661. The next prime is 9777707. The reversal of 9777671 is 1767779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9777671 - 2¹⁴ = 9761287 is a prime.

It is a Sophie Germain 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 (9777631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4888835 + 4888836.

It is an arithmetic number, because the mean of its divisors is an integer number (4888836).

Almost surely, 2^9777671 is an apocalyptic number.

9777671 is a deficient number, since it is larger than the sum of its proper divisors (1).

9777671 is an equidigital number, since it uses as much as digits as its factorization.

9777671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129654, while the sum is 44.

The square root of 9777671 is about 3126.9267660116. The cubic root of 9777671 is about 213.8348436028.

The spelling of 9777671 in words is "nine million, seven hundred seventy-seven thousand, six hundred seventy-one".