11673638 has 8 divisors (see below), whose sum is σ = 18432120. Its totient is φ = 5529600.

The previous prime is 11673617. The next prime is 11673653. The reversal of 11673638 is 83637611.

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 = 11673598 and 11673607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153563 + ... + 153638.

It is an arithmetic number, because the mean of its divisors is an integer number (2304015).

Almost surely, 2^11673638 is an apocalyptic number.

11673638 is a deficient number, since it is larger than the sum of its proper divisors (6758482).

11673638 is a wasteful number, since it uses less digits than its factorization.

11673638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307222.

The product of its digits is 18144, while the sum is 35.

The square root of 11673638 is about 3416.6706016238. The cubic root of 11673638 is about 226.8482363884.

The spelling of 11673638 in words is "eleven million, six hundred seventy-three thousand, six hundred thirty-eight".