11780433 has 18 divisors (see below), whose sum is σ = 19795074. Its totient is φ = 6731424.

The previous prime is 11780429. The next prime is 11780443. The reversal of 11780433 is 33408711.

It can be written as a sum of positive squares in only one way, i.e., 11716929 + 63504 = 3423^2 + 252^2 .

It is not a de Polignac number, because 11780433 - 2² = 11780429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11780397 and 11780406.

It is not an unprimeable number, because it can be changed into a prime (11780443) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 12916 + ... + 13797.

Almost surely, 2^11780433 is an apocalyptic number.

It is an amenable number.

11780433 is a deficient number, since it is larger than the sum of its proper divisors (8014641).

11780433 is a wasteful number, since it uses less digits than its factorization.

11780433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26733 (or 26723 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 11780433 is about 3432.2635388326. The cubic root of 11780433 is about 227.5379029550.

The spelling of 11780433 in words is "eleven million, seven hundred eighty thousand, four hundred thirty-three".