11678646 has 16 divisors (see below), whose sum is σ = 26694144. Its totient is φ = 3336744.

The previous prime is 11678621. The next prime is 11678651. The reversal of 11678646 is 64687611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138990 + ... + 139073.

It is an arithmetic number, because the mean of its divisors is an integer number (1668384).

Almost surely, 2^11678646 is an apocalyptic number.

11678646 is an abundant number, since it is smaller than the sum of its proper divisors (15015498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11678646 is a wasteful number, since it uses less digits than its factorization.

11678646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278075.

The product of its digits is 48384, while the sum is 39.

The square root of 11678646 is about 3417.4034002441. The cubic root of 11678646 is about 226.8806711087.

The spelling of 11678646 in words is "eleven million, six hundred seventy-eight thousand, six hundred forty-six".