11967995 has 16 divisors (see below), whose sum is σ = 15628032. Its totient is φ = 8745600.

The previous prime is 11967979. The next prime is 11967997. The reversal of 11967995 is 59976911.

It is not a de Polignac number, because 11967995 - 2⁴ = 11967979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11967997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5654 + ... + 7476.

It is an arithmetic number, because the mean of its divisors is an integer number (976752).

Almost surely, 2^11967995 is an apocalyptic number.

11967995 is a deficient number, since it is larger than the sum of its proper divisors (3660037).

11967995 is a wasteful number, since it uses less digits than its factorization.

11967995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942.

The product of its digits is 153090, while the sum is 47.

The square root of 11967995 is about 3459.4790070183. The cubic root of 11967995 is about 228.7391307406.

The spelling of 11967995 in words is "eleven million, nine hundred sixty-seven thousand, nine hundred ninety-five".