11966403 has 16 divisors (see below), whose sum is σ = 16572416. Its totient is φ = 7672320.

The previous prime is 11966389. The next prime is 11966441. The reversal of 11966403 is 30466911.

It is not a de Polignac number, because 11966403 - 2¹⁰ = 11965379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11966483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20451 + ... + 21027.

It is an arithmetic number, because the mean of its divisors is an integer number (1035776).

Almost surely, 2^11966403 is an apocalyptic number.

11966403 is a deficient number, since it is larger than the sum of its proper divisors (4606013).

11966403 is a wasteful number, since it uses less digits than its factorization.

11966403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 11966403 is about 3459.2489069161. The cubic root of 11966403 is about 228.7289878875.

The spelling of 11966403 in words is "eleven million, nine hundred sixty-six thousand, four hundred three".