11820963 has 32 divisors (see below), whose sum is σ = 19948032. Its totient is φ = 6048000.

The previous prime is 11820959. The next prime is 11820971. The reversal of 11820963 is 36902811.

11820963 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11820963 - 2² = 11820959 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 11820963.

It is not an unprimeable number, because it can be changed into a prime (11820463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16513 + ... + 17213.

It is an arithmetic number, because the mean of its divisors is an integer number (623376).

Almost surely, 2^11820963 is an apocalyptic number.

11820963 is a deficient number, since it is larger than the sum of its proper divisors (8127069).

11820963 is a wasteful number, since it uses less digits than its factorization.

11820963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 11820963 is about 3438.1627361136. The cubic root of 11820963 is about 227.7985485895.

The spelling of 11820963 in words is "eleven million, eight hundred twenty thousand, nine hundred sixty-three".