11639678 has 8 divisors (see below), whose sum is σ = 17614368. Its totient is φ = 5768224.

The previous prime is 11639659. The next prime is 11639681. The reversal of 11639678 is 87693611.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25526 + ... + 25977.

It is an arithmetic number, because the mean of its divisors is an integer number (2201796).

Almost surely, 2^11639678 is an apocalyptic number.

11639678 is a deficient number, since it is larger than the sum of its proper divisors (5974690).

11639678 is a wasteful number, since it uses less digits than its factorization.

11639678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51618.

The product of its digits is 54432, while the sum is 41.

The square root of 11639678 is about 3411.6972315843. The cubic root of 11639678 is about 226.6280465728.

The spelling of 11639678 in words is "eleven million, six hundred thirty-nine thousand, six hundred seventy-eight".