11643406 has 8 divisors (see below), whose sum is σ = 17675784. Its totient is φ = 5751480.

The previous prime is 11643397. The next prime is 11643421. The reversal of 11643406 is 60434611.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34905 + ... + 35236.

It is an arithmetic number, because the mean of its divisors is an integer number (2209473).

Almost surely, 2^11643406 is an apocalyptic number.

11643406 is a deficient number, since it is larger than the sum of its proper divisors (6032378).

11643406 is an equidigital number, since it uses as much as digits as its factorization.

11643406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70226.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 11643406 is about 3412.2435434769. The cubic root of 11643406 is about 226.6522390855.

The spelling of 11643406 in words is "eleven million, six hundred forty-three thousand, four hundred six".