1065667 has 2 divisors, whose sum is σ = 1065668. Its totient is φ = 1065666.

The previous prime is 1065643. The next prime is 1065677. The reversal of 1065667 is 7665601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1065667 - 2¹¹ = 1063619 is a prime.

It is a super-2 number, since 2×1065667² = 2271292309778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1065677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532833 + 532834.

It is an arithmetic number, because the mean of its divisors is an integer number (532834).

2^1065667 is an apocalyptic number.

1065667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065667 is an equidigital number, since it uses as much as digits as its factorization.

1065667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1065667 is about 1032.3114840008. The cubic root of 1065667 is about 102.1426620928.

The spelling of 1065667 in words is "one million, sixty-five thousand, six hundred sixty-seven".