9966967 has 2 divisors, whose sum is σ = 9966968. Its totient is φ = 9966966.

The previous prime is 9966941. The next prime is 9966989. The reversal of 9966967 is 7696699.

9966967 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 is a cyclic number.

It is not a de Polignac number, because 9966967 - 2¹⁹ = 9442679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9966937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4983483 + 4983484.

It is an arithmetic number, because the mean of its divisors is an integer number (4983484).

Almost surely, 2^9966967 is an apocalyptic number.

9966967 is a deficient number, since it is larger than the sum of its proper divisors (1).

9966967 is an equidigital number, since it uses as much as digits as its factorization.

9966967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 52.

The square root of 9966967 is about 3157.0503638681. The cubic root of 9966967 is about 215.2059825108.

The spelling of 9966967 in words is "nine million, nine hundred sixty-six thousand, nine hundred sixty-seven".