1189967 has 2 divisors, whose sum is σ = 1189968. Its totient is φ = 1189966.

The previous prime is 1189933. The next prime is 1189999. The reversal of 1189967 is 7699811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1189967 - 2¹² = 1185871 is a prime.

It is a super-2 number, since 2×1189967² = 2832042922178, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1189907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594983 + 594984.

It is an arithmetic number, because the mean of its divisors is an integer number (594984).

2^1189967 is an apocalyptic number.

1189967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189967 is an equidigital number, since it uses as much as digits as its factorization.

1189967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 41.

The square root of 1189967 is about 1090.8560858335. The cubic root of 1189967 is about 105.9688706502.

The spelling of 1189967 in words is "one million, one hundred eighty-nine thousand, nine hundred sixty-seven".