999066961 has 2 divisors, whose sum is σ = 999066962. Its totient is φ = 999066960.

The previous prime is 999066881. The next prime is 999066973. The reversal of 999066961 is 169660999.

999066961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 977500225 + 21566736 = 31265^2 + 4644^2 .

It is a cyclic number.

It is not a de Polignac number, because 999066961 - 2⁷ = 999066833 is a prime.

It is not a weakly prime, because it can be changed into another prime (999066461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499533480 + 499533481.

It is an arithmetic number, because the mean of its divisors is an integer number (499533481).

Almost surely, 2^999066961 is an apocalyptic number.

It is an amenable number.

999066961 is a deficient number, since it is larger than the sum of its proper divisors (1).

999066961 is an equidigital number, since it uses as much as digits as its factorization.

999066961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417176, while the sum is 55.

The square root of 999066961 is about 31608.0205169511. The cubic root of 999066961 is about 999.6888902207.

The spelling of 999066961 in words is "nine hundred ninety-nine million, sixty-six thousand, nine hundred sixty-one".