11809962 has 20 divisors (see below), whose sum is σ = 26463426. Its totient is φ = 3936600.

The previous prime is 11809949. The next prime is 11809979. The reversal of 11809962 is 26990811.

It can be written as a sum of positive squares in only one way, i.e., 5948721 + 5861241 = 2439^2 + 2421^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 36289 + ... + 36612.

Almost surely, 2^11809962 is an apocalyptic number.

11809962 is an abundant number, since it is smaller than the sum of its proper divisors (14653464).

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

11809962 is an equidigital number, since it uses as much as digits as its factorization.

11809962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72915 (or 72906 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 11809962 is about 3436.5625267118. The cubic root of 11809962 is about 227.7278609016.

The spelling of 11809962 in words is "eleven million, eight hundred nine thousand, nine hundred sixty-two".