11199967 has 2 divisors, whose sum is σ = 11199968. Its totient is φ = 11199966.

The previous prime is 11199943. The next prime is 11199973. The reversal of 11199967 is 76999111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11199967 - 2¹¹ = 11197919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11199977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599983 + 5599984.

It is an arithmetic number, because the mean of its divisors is an integer number (5599984).

Almost surely, 2^11199967 is an apocalyptic number.

11199967 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199967 is an equidigital number, since it uses as much as digits as its factorization.

11199967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 43.

The square root of 11199967 is about 3346.6351758147. The cubic root of 11199967 is about 223.7375686736.

The spelling of 11199967 in words is "eleven million, one hundred ninety-nine thousand, nine hundred sixty-seven".