11669481 has 8 divisors (see below), whose sum is σ = 17288160. Its totient is φ = 7779636.

The previous prime is 11669473. The next prime is 11669491. The reversal of 11669481 is 18496611.

It is a happy number.

11669481 is a `hidden beast` number, since 116 + 69 + 481 = 666.

It is not a de Polignac number, because 11669481 - 2³ = 11669473 is a prime.

It is a super-2 number, since 2×11669481² = 272353573618722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11669491) 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 7 ways as a sum of consecutive naturals, for example, 216075 + ... + 216128.

It is an arithmetic number, because the mean of its divisors is an integer number (2161020).

Almost surely, 2^11669481 is an apocalyptic number.

It is an amenable number.

11669481 is a deficient number, since it is larger than the sum of its proper divisors (5618679).

11669481 is an equidigital number, since it uses as much as digits as its factorization.

11669481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432212 (or 432206 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 11669481 is about 3416.0622066935. The cubic root of 11669481 is about 226.8213061924.

The spelling of 11669481 in words is "eleven million, six hundred sixty-nine thousand, four hundred eighty-one".