1067999 has 2 divisors, whose sum is σ = 1068000. Its totient is φ = 1067998.

The previous prime is 1067987. The next prime is 1068019. The reversal of 1067999 is 9997601.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9997601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1067999 - 2¹² = 1063903 is a prime.

It is a super-2 number, since 2×1067999² = 2281243728002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1067909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533999 + 534000.

It is an arithmetic number, because the mean of its divisors is an integer number (534000).

2^1067999 is an apocalyptic number.

1067999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067999 is an equidigital number, since it uses as much as digits as its factorization.

1067999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 1067999 is about 1033.4403708004. The cubic root of 1067999 is about 102.2171141027.

It can be divided in two parts, 106799 and 9, that multiplied together give a triangular number (961191 = T₁₃₈₆).

The spelling of 1067999 in words is "one million, sixty-seven thousand, nine hundred ninety-nine".