999997067 has 2 divisors, whose sum is σ = 999997068. Its totient is φ = 999997066.

The previous prime is 999997049. The next prime is 999997081. The reversal of 999997067 is 760799999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999997067 - 2¹⁰ = 999996043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999996994 and 999997012.

It is not a weakly prime, because it can be changed into another prime (999997267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499998533 + 499998534.

It is an arithmetic number, because the mean of its divisors is an integer number (499998534).

Almost surely, 2^999997067 is an apocalyptic number.

999997067 is a deficient number, since it is larger than the sum of its proper divisors (1).

999997067 is an equidigital number, since it uses as much as digits as its factorization.

999997067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17360406, while the sum is 65.

The square root of 999997067 is about 31622.7302268479. The cubic root of 999997067 is about 999.9990223324. Note that the first 3 decimals are identical.

The spelling of 999997067 in words is "nine hundred ninety-nine million, nine hundred ninety-seven thousand, sixty-seven".