18467966 has 8 divisors (see below), whose sum is σ = 30220344. Its totient is φ = 8394520.

The previous prime is 18467963. The next prime is 18467989. The reversal of 18467966 is 66976481.

It is a happy number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18467966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18467963) 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, 419705 + ... + 419748.

It is an arithmetic number, because the mean of its divisors is an integer number (3777543).

Almost surely, 2^18467966 is an apocalyptic number.

18467966 is a deficient number, since it is larger than the sum of its proper divisors (11752378).

18467966 is a wasteful number, since it uses less digits than its factorization.

18467966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839466.

The product of its digits is 435456, while the sum is 47.

The square root of 18467966 is about 4297.4371432285. The cubic root of 18467966 is about 264.3258812372.

The spelling of 18467966 in words is "eighteen million, four hundred sixty-seven thousand, nine hundred sixty-six".