11640067 has 8 divisors (see below), whose sum is σ = 11966976. Its totient is φ = 11316552.

The previous prime is 11640061. The next prime is 11640077. The reversal of 11640067 is 76004611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11640067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11640061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7108 + ... + 8590.

It is an arithmetic number, because the mean of its divisors is an integer number (1495872).

Almost surely, 2^11640067 is an apocalyptic number.

11640067 is a deficient number, since it is larger than the sum of its proper divisors (326909).

11640067 is a wasteful number, since it uses less digits than its factorization.

11640067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 11640067 is about 3411.7542408562. The cubic root of 11640067 is about 226.6305711939.

Adding to 11640067 its reverse (76004611), we get a palindrome (87644678).

The spelling of 11640067 in words is "eleven million, six hundred forty thousand, sixty-seven".