11423666 has 8 divisors (see below), whose sum is σ = 17553564. Its totient is φ = 5572480.

The previous prime is 11423647. The next prime is 11423669. The reversal of 11423666 is 66632411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11363641 + 60025 = 3371^2 + 245^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11423669) 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, 69575 + ... + 69738.

Almost surely, 2^11423666 is an apocalyptic number.

11423666 is a deficient number, since it is larger than the sum of its proper divisors (6129898).

11423666 is a wasteful number, since it uses less digits than its factorization.

11423666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139356.

The product of its digits is 5184, while the sum is 29.

The square root of 11423666 is about 3379.8914183743. The cubic root of 11423666 is about 225.2173438936.

The spelling of 11423666 in words is "eleven million, four hundred twenty-three thousand, six hundred sixty-six".