11644667 has 8 divisors (see below), whose sum is σ = 11907072. Its totient is φ = 11385000.

The previous prime is 11644637. The next prime is 11644691. The reversal of 11644667 is 76644611.

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-11644667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11644637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9542 + ... + 10692.

It is an arithmetic number, because the mean of its divisors is an integer number (1488384).

Almost surely, 2^11644667 is an apocalyptic number.

11644667 is a deficient number, since it is larger than the sum of its proper divisors (262405).

11644667 is a wasteful number, since it uses less digits than its factorization.

11644667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369.

The product of its digits is 24192, while the sum is 35.

The square root of 11644667 is about 3412.4283142654. The cubic root of 11644667 is about 226.6604210601.

The spelling of 11644667 in words is "eleven million, six hundred forty-four thousand, six hundred sixty-seven".