11967646 has 8 divisors (see below), whose sum is σ = 17992800. Its totient is φ = 5970048.

The previous prime is 11967617. The next prime is 11967649. The reversal of 11967646 is 64676911.

11967646 is nontrivially palindromic in base 13.

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

It is a junction number, because it is equal to n+sod(n) for n = 11967599 and 11967608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11967649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5766 + ... + 7561.

It is an arithmetic number, because the mean of its divisors is an integer number (2249100).

Almost surely, 2^11967646 is an apocalyptic number.

11967646 is a deficient number, since it is larger than the sum of its proper divisors (6025154).

11967646 is a wasteful number, since it uses less digits than its factorization.

11967646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13778.

The product of its digits is 54432, while the sum is 40.

The square root of 11967646 is about 3459.4285655293. The cubic root of 11967646 is about 228.7369072901.

The spelling of 11967646 in words is "eleven million, nine hundred sixty-seven thousand, six hundred forty-six".