9916770287 has 2 divisors, whose sum is σ = 9916770288. Its totient is φ = 9916770286.

The previous prime is 9916770271. The next prime is 9916770307. The reversal of 9916770287 is 7820776199.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9916770287 - 2⁴ = 9916770271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9916772287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4958385143 + 4958385144.

It is an arithmetic number, because the mean of its divisors is an integer number (4958385144).

Almost surely, 2^9916770287 is an apocalyptic number.

9916770287 is a deficient number, since it is larger than the sum of its proper divisors (1).

9916770287 is an equidigital number, since it uses as much as digits as its factorization.

9916770287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 56.

The square root of 9916770287 is about 99582.9819145822. The cubic root of 9916770287 is about 2148.4409311558.

The spelling of 9916770287 in words is "nine billion, nine hundred sixteen million, seven hundred seventy thousand, two hundred eighty-seven".