11909679 has 8 divisors (see below), whose sum is σ = 16005120. Its totient is φ = 7877016.

The previous prime is 11909657. The next prime is 11909693. The reversal of 11909679 is 97690911.

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

It is not a de Polignac number, because 11909679 - 2⁵ = 11909647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11909679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11909279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15249 + ... + 16010.

It is an arithmetic number, because the mean of its divisors is an integer number (2000640).

Almost surely, 2^11909679 is an apocalyptic number.

11909679 is a deficient number, since it is larger than the sum of its proper divisors (4095441).

11909679 is a wasteful number, since it uses less digits than its factorization.

11909679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31389.

The product of its (nonzero) digits is 30618, while the sum is 42.

The square root of 11909679 is about 3451.0402779452. The cubic root of 11909679 is about 228.3670028078.

The spelling of 11909679 in words is "eleven million, nine hundred nine thousand, six hundred seventy-nine".