11964209 has 16 divisors (see below), whose sum is σ = 13592448. Its totient is φ = 10467072.

The previous prime is 11964193. The next prime is 11964259. The reversal of 11964209 is 90246911.

It is a cyclic number.

It is not a de Polignac number, because 11964209 - 2⁴ = 11964193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11964259) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14054 + ... + 14880.

It is an arithmetic number, because the mean of its divisors is an integer number (849528).

Almost surely, 2^11964209 is an apocalyptic number.

It is an amenable number.

11964209 is a deficient number, since it is larger than the sum of its proper divisors (1628239).

11964209 is a wasteful number, since it uses less digits than its factorization.

11964209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 11964209 is about 3458.9317715156. The cubic root of 11964209 is about 228.7150081346.

The spelling of 11964209 in words is "eleven million, nine hundred sixty-four thousand, two hundred nine".